Top 58 Slang For Definitely – Meaning & Usage

When it comes to expressing certainty, sometimes “definitely” just doesn’t cut it. That’s where we come in. We’ve scoured the depths of modern slang to bring you a list of the top slang words for “definitely”. From hip-hop lyrics to internet memes, this list will have you speaking with confidence and keeping up with the latest linguistic trends. Get ready to upgrade your vocabulary and impress your friends with these definitely cool slang words!

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1. In the bag

When something is “in the bag,” it means that it is certain or guaranteed to happen. This phrase is often used to express confidence or certainty in the outcome of a situation.

For example, a sports fan might say, “With their star player back on the team, the victory is in the bag.”
In a business context, someone might say, “After months of negotiations, we finally have the deal in the bag.”
A student might confidently state, “I studied all night, so the exam is in the bag.”

2. Once in a blue moon

This phrase is used to describe something that happens very rarely or only on rare occasions. It implies that the event is uncommon and not a regular occurrence.

For instance, someone might say, “I only see my old high school friends once in a blue moon.”
A person might explain, “I’m not a big fan of seafood, but I’ll eat sushi once in a blue moon.”
In a discussion about travel, someone might mention, “I only get to go on vacation once in a blue moon.”

3. You bet

This phrase is used to express strong agreement or confirmation. It is often used to indicate that something is absolutely or definitely true.

For example, if someone asks, “Are you coming to the party?”, a person might respond, “You bet!”
In a conversation about plans, someone might say, “I’ll be there at 7, you bet.”
A friend might ask, “Do you want to grab pizza?”, and the response could be, “You bet I do!”

4. I don’t buy that

This phrase is used to express disbelief or skepticism towards something that has been said or presented. It implies that the speaker does not believe or accept what is being claimed.

For instance, if someone makes an outrageous claim, a person might respond, “I don’t buy that for a second.”
In a discussion about conspiracy theories, someone might say, “I don’t buy that the moon landing was faked.”
A friend might tell a far-fetched story, and the response could be, “I don’t buy that at all.”

5. That’s rad

This phrase is used to express enthusiasm or approval for something. It is often used to describe something that is considered awesome, cool, or impressive.

For example, if someone shows off a new car, a person might say, “Wow, that’s rad!”
In a conversation about a concert, someone might exclaim, “The band’s performance last night was rad!”
A friend might share a photo of a stunning sunset, and the response could be, “That’s rad, I wish I was there!”

6. Never mind

This phrase is used to dismiss or cancel something that was previously mentioned or planned. It suggests that the topic or action is no longer important or relevant.

For example, if someone offers to help with a task but then realizes it’s unnecessary, they might say, “Never mind, I’ve got it.”
If someone asks for a favor but then changes their mind, they might say, “Never mind, I don’t need your help anymore.”
In a conversation about a potential outing, one person might say, “Let’s go to the park.” If the other person realizes they have other plans, they might reply, “Never mind, I can’t make it.”

7. Keep in touch

This phrase is used to express the desire to maintain communication with someone. It suggests a commitment to stay connected and continue the relationship.

For instance, at the end of a conversation, one person might say, “It was great seeing you. Let’s keep in touch.”
If someone is moving away or starting a new job, they might say, “I’ll miss you. We should definitely keep in touch.”
When exchanging contact information, one person might say, “Here’s my number. Let’s keep in touch.”

8. I can’t even!

This phrase is used to express extreme emotions, often in a humorous or exaggerated way. It suggests that the speaker is so overwhelmed by a situation or feeling that they can’t even find the words to fully express themselves.

For example, if someone sees a cute puppy, they might exclaim, “Oh my gosh, I can’t even! It’s too adorable.”
If someone receives exciting news, they might say, “I can’t even believe it! This is amazing.”
When faced with a difficult challenge, someone might say, “This is so tough, I can’t even wrap my head around it.”

9. No biggie

This phrase is used to downplay the importance or significance of something. It suggests that the speaker doesn’t view the situation as a major issue or cause for concern.

For instance, if someone accidentally spills a drink, they might say, “No biggie, I’ll clean it up.”
If someone forgets to bring something, they might say, “No biggie, I can borrow it from someone else.”
When someone apologizes for a minor inconvenience, the other person might respond, “No biggie, it happens.”

10. No big deal

This phrase is similar to “no biggie” and is used to minimize the importance or impact of something. It suggests that the speaker doesn’t consider the situation to be a major problem or cause for worry.

For example, if someone cancels plans at the last minute, the other person might say, “No big deal, we can reschedule.”
If someone makes a small mistake, they might say, “No big deal, it’s easily fixable.”
When someone apologizes for a minor inconvenience, the other person might respond, “No big deal, don’t worry about it.”

11. No sweat

This phrase is used to indicate that something can be done easily or without any difficulty. It is often used to reassure someone that a task or request is not a problem.

For example, if someone asks for a favor, you might respond, “Sure, no sweat!”
In a conversation about completing a task, someone might say, “I can finish it by tomorrow, no sweat.”
If someone apologizes for a small mistake, you could say, “Don’t worry about it, no sweat!”

12. Show up

This phrase means to arrive or be present at a specific place or event. It can also be used to describe someone’s attendance or participation.

For instance, if someone asks if you will be at a party, you can say, “I’ll definitely show up.”
In a discussion about attending a meeting, someone might say, “Make sure to show up on time.”
If someone is surprised by someone’s sudden appearance, they might exclaim, “I didn’t expect you to show up!”

13. Have a crush (on someone)

This phrase is used to describe having strong romantic feelings or attraction towards someone. It implies a sense of admiration and desire for the person.

For example, if someone asks if you like someone, you might say, “Yeah, I have a crush on them.”
In a conversation about dating, someone might say, “I’ve had a crush on them for months.”
If someone is teasing you about your feelings for someone, they might say, “Looks like someone has a crush!”

14. Get hitched

This phrase is a slang term for getting married. It is often used in a casual or lighthearted manner.

For instance, if someone announces their engagement, you can congratulate them by saying, “Congratulations on getting hitched!”
In a conversation about relationships, someone might say, “I think it’s time for us to get hitched.”
If someone asks about your plans for the future, you could say, “I’m hoping to get hitched someday.”

15. Tie the knot

This phrase is another slang term for getting married. It refers to the act of tying a knot, symbolizing the union between two people.

For example, if someone asks if you want to get married, you might say, “I’m ready to tie the knot.”
In a discussion about wedding traditions, someone might mention, “Tying the knot is a common phrase used to describe marriage.”
If someone is talking about their upcoming wedding, you could say, “I can’t wait to see you tie the knot!”

16. I’m beat

This phrase is used to express extreme tiredness or fatigue. It can be used to convey physical or mental exhaustion.

For example, after a long day of work, someone might say, “I’m beat, I just want to go home and sleep.”
A student studying for exams might say, “I’ve been studying all night, I’m beat.”
Someone who just finished a marathon might exclaim, “I can’t move, I’m beat!”

17. Get under one’s skin

This phrase is used to describe something or someone that bothers or annoys someone else. It refers to something that gets on their nerves or irritates them.

For instance, if someone constantly interrupts you while you’re speaking, you might say, “They really get under my skin.”
A coworker who always leaves dirty dishes in the office sink might be described as, “Someone who really gets under my skin.”
If a certain sound or noise is particularly irritating, someone might say, “That noise really gets under my skin.”

18. A turn off

This phrase is used to describe something that is unappealing or unattractive to someone. It refers to something that decreases their interest or attraction.

For example, if someone is on a date and the other person is rude to the waiter, they might say, “That was a real turn off.”
If someone is interested in someone until they find out they have a bad habit, they might say, “That’s a turn off for me.”
If a person is considering buying a house but discovers it has a lot of maintenance issues, they might say, “The repairs needed are a turn off.”

19. Couch potato

This phrase is used to describe someone who spends a significant amount of time being sedentary and inactive, typically watching television or engaging in other activities that require minimal physical effort.

For instance, if someone spends their entire weekend binge-watching a TV series, they might say, “I was such a couch potato.”
A person who prefers staying home and watching movies rather than going out might be referred to as a “couch potato.”
If someone is known for always lounging on the couch and rarely engaging in physical activity, they might be jokingly called a “couch potato.”

20. Party animal

This phrase is used to describe someone who thoroughly enjoys attending parties and social gatherings. It suggests that the person is energetic, enthusiastic, and often the life of the party.

For example, if someone is always the first to arrive and the last to leave at every social event, they might be referred to as a “party animal.”
A person who is always looking for the next party or social gathering to attend might be described as a “party animal.”
If someone is known for their dancing and ability to keep the energy high at parties, they might be called a “party animal.”

21. Hang out

This phrase is used to suggest spending time together in a relaxed and informal manner.

For example, “Let’s hang out at the park this weekend.”
A group of friends might plan to “hang out” at someone’s house for a movie night.
When making plans, someone might say, “I’m free tomorrow, we should hang out.”

22. It sucked

This phrase is used to express extreme disappointment or dissatisfaction with something.

For instance, “The movie was so bad, it sucked.”
Someone might say, “I went to that restaurant and the food sucked.”
If a concert was disappointing, a person might say, “The band’s performance sucked.”

23. I’m game

This phrase is used to indicate that a person is enthusiastic and ready to join in on an activity or event.

For example, “You want to go hiking this weekend? I’m game!”
If someone suggests playing a board game, a person might respond, “I’m game, let’s do it.”
When invited to try a new sport, someone might say, “I’ve never played before, but I’m game to give it a try.”

24. I’m down

This phrase is used to express agreement or enthusiasm for a suggested activity or plan.

For instance, “You want to grab dinner tonight? I’m down!”
If someone suggests going to a concert, a person might respond, “I’m down, let’s get tickets.”
When invited to go shopping, someone might say, “I’m down to browse and see what’s available.”

25. I’m in

This phrase is used to indicate that a person is willing to be part of an activity or event.

For example, “We’re going to the beach tomorrow, are you in?”
If a group of friends plans a road trip, someone might say, “Count me in, I’m excited!”
When invited to join a sports team, a person might respond, “I’m in, let’s start practicing.”

26. Have a blast

This phrase is used to express that someone is having a lot of fun or thoroughly enjoying an activity or event.

For example, “We went to the amusement park and had a blast on all the roller coasters.”
Someone might say, “I had a blast at the concert last night. The band was amazing!”
A person might post on social media, “Just had a blast on my vacation. Can’t wait to go back again!”

27. Get fired

This slang phrase is used to describe the act of losing one’s job or being terminated from employment.

For instance, “John got fired from his job because he was always late.”
A person might say, “I’m worried I’ll get fired if I make too many mistakes.”
Someone might post on social media, “Just got fired from my job. Time to start fresh and find something better!”

28. Hit the books

This slang phrase is commonly used to encourage someone to begin studying or to describe the act of studying for an exam or test.

For example, “I have a big exam tomorrow, so I need to hit the books tonight.”
A student might say, “I can’t go out tonight, I have to hit the books and prepare for my final.”
Someone might post on social media, “No time for fun, it’s time to hit the books and get those good grades!”

29. Rip (someone) off

This slang phrase is used to describe the act of cheating or taking advantage of someone by charging them too much or providing a product or service that is not as advertised.

For instance, “The mechanic ripped me off by charging double for a simple repair.”
A person might say, “Be careful when buying online, some sellers try to rip you off with fake products.”
Someone might post on social media, “Just got ripped off by a taxi driver. Paid three times the normal fare!”

30. Ride shotgun

This slang phrase originated from the practice of having a person armed with a shotgun sit next to the driver for protection during stagecoach rides. It now refers to sitting in the front seat of a car.

For example, “I called shotgun, so I get to ride shotgun in the car!”
A friend might say, “Can I ride shotgun on our road trip? I love sitting up front.”
Someone might post on social media, “Riding shotgun with the windows down, enjoying the breeze!”

31. Absolutely

This slang term is used to express complete agreement or certainty. It emphasizes a strong affirmation or confirmation.

For example, if someone asks, “Are you coming to the party?” you can respond with, “Absolutely!”
In a conversation about a movie, you might say, “Absolutely loved the ending!”
If someone compliments your outfit, you can reply, “Thank you! Absolutely my favorite.”

32. Totally

This word is used to indicate complete agreement or certainty. It is often used to show full agreement or understanding.

For instance, if someone asks, “Do you want to go for ice cream?” you can reply, “Totally!”
In a conversation about a plan, you might say, “Totally on board with that.”
If someone says something shocking, you can respond with, “Totally didn’t see that coming!”

33. 100%

This slang term is used to express complete agreement or certainty. It emphasizes the idea of being completely sure or confident about something.

For example, if someone asks, “Are you sure about this?” you can reply with, “100%!”
In a discussion about a decision, you might say, “I’m 100% certain this is the right choice.”
If someone asks if you enjoyed a book, you can respond with, “Absolutely, 100% loved it!”

34. Without a doubt

This phrase is used to express complete certainty or agreement. It emphasizes the idea that there is no room for doubt or uncertainty.

For instance, if someone asks, “Are you sure about this?” you can reply with, “Without a doubt!”
In a conversation about a fact, you might say, “Without a doubt, that’s true.”
If someone asks if you’ll be there, you can respond with, “Without a doubt, I’ll be there!”

35. Most definitely

This phrase is used to express strong agreement or certainty. It emphasizes the idea of being very sure or confident about something.

For example, if someone asks, “Can you help me with this?” you can reply with, “Most definitely!”
In a discussion about a plan, you might say, “Most definitely, count me in.”
If someone asks if you agree with a statement, you can respond with, “Most definitely, I agree!”

36. Positively

This word is used to express complete certainty or agreement. It is often used as a synonym for “definitely” or “without a doubt”.

For example, someone might say, “I positively love chocolate ice cream.”
In a conversation, one person might respond with, “Positively, I will be there.”
Another situation might involve a statement like, “I can positively say that she is the best candidate for the job.”

37. Without question

This phrase is used to emphasize certainty or agreement without any hesitation or doubt. It is often used to convey a strong sense of conviction.

For instance, someone might say, “Without question, he is the most talented musician I’ve ever seen.”
In a discussion, one person might assert, “Without a doubt, this is the best solution to the problem.”
Another situation might involve a statement like, “Her talent is without question.”

38. Definitely

This word is used to express a strong affirmation or confirmation. It indicates a high level of certainty or agreement.

For example, someone might say, “I definitely want to go to the concert.”
In a conversation, one person might respond with, “Definitely, we should try that new restaurant.”
Another situation might involve a statement like, “She definitely deserves the promotion.”

39. Certainly

This word is used to express agreement or confirmation. It is often used to convey a sense of certainty or assurance.

For instance, someone might say, “I certainly believe in second chances.”
In a discussion, one person might assert, “Certainly, we can find a solution to this problem.”
Another situation might involve a statement like, “He certainly knows how to make people laugh.”

40. Undoubtedly

This word is used to emphasize certainty or agreement. It indicates a high level of confidence and leaves no room for doubt.

For example, someone might say, “Undoubtedly, she is the best candidate for the job.”
In a conversation, one person might respond with, “Undoubtedly, this is the most beautiful place I’ve ever visited.”
Another situation might involve a statement like, “His talent is undoubtedly impressive.”

41. Without fail

This phrase is used to express absolute certainty or a guarantee that something will happen or be done without any exceptions or errors.

For example, “I will be at the meeting without fail.”
A person might say, “The sun rises in the east without fail every morning.”
Another might assure, “You can count on me to finish the project without fail.”

42. Sure thing

This slang phrase is used to express agreement or confirmation, indicating that something is definitely going to happen or be done.

For instance, if someone asks, “Can you help me with this?”, a person might respond, “Sure thing!”
A friend might say, “Do you want to grab dinner tonight?” and the response could be, “Sure thing, I’m hungry.”
Another might say, “Sure thing, I’ll take care of it right away.”

43. No doubt

This phrase is used to emphasize that there is absolutely no uncertainty or doubt about something.

For example, if someone asks, “Are you going to the party?”, a person might respond, “No doubt, I wouldn’t miss it.”
A person might say, “He’s the best player on the team, no doubt about it.”
Another might assure, “The concert will be amazing, no doubt.”

44. Without hesitation

This phrase is used to indicate that someone is acting or speaking without any delay or doubt.

For instance, if someone asks for help, a person might respond, “I’ll be there without hesitation.”
A person might say, “When it comes to helping others, she always volunteers without hesitation.”
Another might assure, “I would without hesitation recommend this restaurant to anyone.”

45. Without reservation

This phrase is used to express complete agreement or support without any doubts, hesitations, or reservations.

For example, if someone asks, “Do you believe in this cause?”, a person might respond, “Without reservation.”
A person might say, “I trust her judgment without reservation.”
Another might assure, “I can recommend this book without reservation, it’s excellent.”

46. Without doubt

This phrase is used to express complete certainty or conviction about something. It emphasizes that there is no room for doubt or uncertainty.

For example, “I know without doubt that I made the right decision.”
A person might say, “Without doubt, she is the most talented singer in the competition.”
Another might state, “The evidence is overwhelming, without doubt, he committed the crime.”

47. Without uncertainty

This phrase is similar to “without doubt” and conveys a strong sense of confidence and assurance. It implies that there is no wavering or ambiguity in one’s belief or statement.

For instance, “I can say without uncertainty that I will be there on time.”
Someone might assert, “Without uncertainty, she is the best candidate for the job.”
Another might declare, “I can state without uncertainty that this product will improve your life.”

48. Without any shadow of a doubt

This phrase is an emphatic way of expressing complete certainty or conviction. It emphasizes that there is absolutely no room for doubt or uncertainty.

For example, “I can say without any shadow of a doubt that he is guilty.”
A person might assert, “Without any shadow of a doubt, this is the best pizza I’ve ever had.”
Another might state, “The evidence is clear, without any shadow of a doubt, she will win the race.”

49. Beyond a shadow of a doubt

This phrase is similar to “without any shadow of a doubt” and emphasizes a high level of certainty or conviction. It suggests that there is no possible room for doubt or uncertainty.

For instance, “The evidence proves beyond a shadow of a doubt that he is innocent.”
Someone might assert, “Beyond a shadow of a doubt, this is the most beautiful sunset I’ve ever seen.”
Another might declare, “The results of the experiment are conclusive, beyond a shadow of a doubt.”

50. Hands down

This phrase is used to express a high level of certainty or conviction about something. It implies that there is no contest or competition, as the outcome or truth is so obvious or indisputable.

For example, “She is hands down the best dancer in the group.”
A person might say, “Hands down, this is the best movie of the year.”
Another might state, “The team won the championship hands down, with no other team coming close.”

51. Indubitably

This word is used to emphasize that something is absolutely certain or true. It is often used in a sarcastic or humorous manner.

For example, “Do I want ice cream? Indubitably!”
In a conversation about the weather, someone might say, “Indubitably, it’s going to rain today.”
When asked if they are ready for the exam, a student might reply, “Indubitably, I’ve been studying all week.”

52. Without any reservation

This phrase is used to convey absolute certainty or agreement. It implies that there are no doubts or uncertainties about a particular situation or statement.

For instance, “I can say without any reservation that she is the best candidate for the job.”
When asked about their decision, someone might say, “I support this proposal without any reservation.”
In a discussion about a controversial topic, a person might state, “I believe in this cause without any reservation.”

53. Without any uncertainty

This phrase is used to express complete certainty or confidence in something. It indicates that there are no doubts or uncertainties regarding a particular matter.

For example, “I can say without any uncertainty that he is guilty of the crime.”
When discussing future plans, someone might say, “I am without any uncertainty going to pursue my dream career.”
In a conversation about a decision, a person might state, “I have made up my mind without any uncertainty.”

54. Without any hesitation

This phrase is used to indicate that there are no doubts or hesitations about a particular action or decision. It implies that someone is completely sure or confident in their choice.

For instance, “She accepted the job offer without any hesitation.”
When asked if they would help, someone might say, “I would without any hesitation.”
In a discussion about taking risks, a person might state, “I always go after my dreams without any hesitation.”

55. Without any skepticism

This phrase is used to convey absolute certainty or trust in something. It indicates that there are no doubts or skepticism regarding a particular statement or claim.

For example, “I believe in this theory without any skepticism.”
When discussing a new product, someone might say, “I would buy it without any skepticism.”
In a conversation about someone’s abilities, a person might state, “I have seen her work, and I trust her without any skepticism.”

56. Without any wavering

This phrase is used to emphasize that there is absolutely no uncertainty or hesitation. It conveys a strong sense of conviction and assurance.

For example, “I am without any wavering going to the party tonight.”
Someone might confidently state, “I am without any wavering sure that I aced the exam.”
In a discussion about future plans, a person might assert, “I am without any wavering going to pursue my dreams.”

57. Without any vacillation

This phrase indicates that a decision or action is made without any hesitation or doubt. It suggests a firm and unwavering determination.

For instance, “I am without any vacillation quitting my job and pursuing my passion.”
A person might say, “I am without any vacillation going to stand up for what I believe in.”
In a conversation about taking risks, someone might declare, “I am without any vacillation going to take the leap.”

58. Without any equivocation

This phrase is used to express complete certainty and confidence in a statement or decision. It implies that there is no room for doubt or ambiguity.

For example, “I am without any equivocation certain that she will win the competition.”
Someone might assert, “I am without any equivocation convinced that this is the right path for me.”
In a discussion about a controversial topic, a person might state, “I am without any equivocation standing up for what I believe in.”