Top 27 Slang For Unhinged – Meaning & Usage

When it comes to expressing the wild and unpredictable side of human behavior, there’s a plethora of slang for the unhinged that captures the essence of chaos and unpredictability. Whether you’re looking to expand your vocabulary or simply want to stay in the loop with the latest linguistic trends, our team has got you covered. Get ready to dive into a list that will leave you both entertained and enlightened about the colorful language used to describe the unbridled side of human nature.

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1. Loony

This term is used to describe someone who is mentally unstable or behaving in an irrational or eccentric manner.

For example, “He went completely loony and started shouting at imaginary people.”
In a discussion about unusual behavior, someone might say, “That guy is a bit loony, don’t you think?”
A friend might jokingly tease, “You’re acting loony today, what’s gotten into you?”

2. Bonkers

This slang term is used to describe something that is crazy, wild, or out of control.

For instance, “The party last night was absolutely bonkers, it went on until dawn.”
In a conversation about a chaotic situation, someone might say, “Things have gone completely bonkers here.”
A person might exclaim, “You must be bonkers if you think I’m going to agree to that!”

3. Off the rails

This phrase is used to describe someone or something that has become uncontrollable or is behaving in a chaotic or unpredictable manner.

For example, “His behavior has gone completely off the rails since the breakup.”
In a discussion about a project that has veered off course, someone might say, “The whole thing has gone off the rails, we need to regroup.”
A friend might express concern, “I’m worried about her, she seems to be going off the rails lately.”

4. Nutty

This slang term is used to describe someone or something that is eccentric, odd, or behaving in a peculiar manner.

For instance, “He has some really nutty ideas about how the world works.”
In a conversation about a bizarre situation, someone might say, “That’s just nutty, I can’t believe it.”
A person might playfully tease, “You’re a bit nutty, but that’s why I like you!”

5. Wacko

This slang term is used to describe someone who is mentally unstable or behaving in a bizarre or irrational manner.

For example, “He’s a total wacko, always coming up with these strange theories.”
In a discussion about unusual behavior, someone might say, “I can’t believe she did that, she’s a real wacko.”
A friend might jokingly say, “You’re acting like a wacko today, what’s going on with you?”

6. Cuckoo

This term is used to describe someone who is mentally unstable or acting in a bizarre or irrational manner. It is often used in a lighthearted or humorous way.

For example, “She’s completely cuckoo if she thinks she can fly.”
In a conversation about strange behavior, someone might say, “He went totally cuckoo and started dancing in the middle of the street.”
A person might jokingly refer to themselves as cuckoo by saying, “I must be cuckoo to believe in conspiracy theories.”

7. Unhinged

This word is used to describe someone who is mentally unstable or emotionally disturbed. It implies a lack of control or stability in their thoughts or actions.

For instance, “His unhinged behavior made everyone uncomfortable.”
In a discussion about a person’s erratic actions, someone might comment, “They seem completely unhinged lately.”
A news article might describe a violent individual as “an unhinged individual with a history of aggression.”

8. Cray-cray

This term is a playful and informal way of saying “crazy.” It is often used to describe someone or something that is extremely unusual, wild, or out of control.

For example, “That party last night was cray-cray!”
In a conversation about a bizarre situation, someone might say, “Things got cray-cray when the animals escaped from the zoo.”
A person might describe their friend as “a little cray-cray,“a little cray-cray, but in a fun way.”

9. Batty

This word is used to describe someone who is mentally unstable or eccentric. It suggests a level of irrationality or odd behavior.

For instance, “She’s a bit batty, always talking to imaginary friends.”
In a discussion about strange habits, someone might say, “He has some batty rituals he follows every day.”
A person might jokingly refer to themselves as batty by saying, “I must be a bit batty to enjoy horror movies.”

10. Whacko

This term is used to describe someone who is mentally unstable or behaving in a bizarre or irrational manner. It is often used in a derogatory or dismissive way.

For example, “He’s a total whacko, always coming up with conspiracy theories.”
In a conversation about a person’s strange actions, someone might comment, “They’re acting like a complete whacko.”
A news article might describe an individual involved in a bizarre incident as “a whacko with a history of erratic behavior.”

11. Nuts

This slang term is used to describe someone who is mentally unstable or acting irrational. It can also be used to describe something that is absurd or unbelievable.

For example, “He went nuts and started throwing things around the room.”
Someone might say, “That idea is completely nuts. There’s no way it would work.”
A person might jokingly comment, “I must be nuts to agree to do this challenge.”

12. Psycho

This term is used to describe someone who is mentally unstable, particularly someone who displays violent or erratic behavior. It can also be used to describe something that is extremely intense or extreme.

For instance, “He’s a psycho. He’s been stalking me for months.”
A person might say, “That roller coaster is psycho. It goes upside down and loops multiple times.”
Someone might comment, “She went psycho when she found out her favorite band was breaking up.”

13. Out of one’s mind

This phrase is used to describe someone who is mentally unstable or not thinking clearly. It can also be used to describe something that is extremely surprising or unbelievable.

For example, “After the accident, he was out of his mind with grief.”
A person might say, “The price of that car is out of my mind. I could never afford it.”
Someone might comment, “The party last night was out of its mind. There was dancing on tables and people jumping in the pool.”

14. Mad as a hatter

This phrase is used to describe someone who is mentally unstable or acting irrational. It originated from the phrase “mad as a hatter,” which refers to the mercury poisoning that affected hat makers in the past.

For instance, “She’s mad as a hatter. She talks to herself and wears mismatched clothes.”
A person might say, “The weather is mad as a hatter today. It’s sunny one minute and pouring rain the next.”
Someone might comment, “I felt mad as a hatter after pulling an all-nighter to finish my project.”

15. Bananas

This slang term is used to describe someone or something that is crazy or insane. It can also be used to describe something that is extremely exciting or impressive.

For example, “He went bananas when he won the lottery.”
A person might say, “The concert last night was bananas. The crowd was going wild.”
Someone might comment, “The traffic this morning was bananas. It took me two hours to get to work.”

16. Daft

This word is used to describe someone who is foolish or mentally unstable. It can also refer to something that is silly or nonsensical.

For example, “He’s acting daft, talking to himself and laughing for no reason.”
A person might say, “That’s a daft idea, it’ll never work.”
In a conversation about strange behavior, someone might comment, “I saw this daft guy dancing in the street yesterday.”

17. Unbalanced

This term is used to describe someone who is mentally or emotionally unstable. It implies a lack of stability or control over one’s thoughts and actions.

For instance, “She’s been acting unbalanced lately, crying one minute and laughing hysterically the next.”
In a discussion about mental health, someone might say, “People with bipolar disorder often experience periods of feeling unbalanced.”
A person might comment, “His unbalanced behavior is causing concern among his friends and family.”

18. Deranged

This word is used to describe someone who is mentally disturbed or insane. It implies a severe and dangerous level of mental instability.

For example, “He went on a deranged rampage, attacking anyone in sight.”
In a conversation about criminal behavior, someone might say, “Only a deranged person would commit such a heinous act.”
A person might comment, “The deranged killer showed no remorse for his actions.”

19. Maniacal

This term is used to describe someone who is exhibiting extreme and uncontrollable behavior. It implies a level of madness or insanity.

For instance, “He let out a maniacal laugh that sent shivers down my spine.”
In a discussion about horror movies, someone might say, “The villain’s maniacal laughter added to the suspense.”
A person might comment, “Her maniacal obsession with perfection is driving her to the brink of insanity.”

20. Unstable

This word is used to describe someone who is emotionally or mentally unstable. It implies a lack of stability or consistency in their thoughts, emotions, or behavior.

For example, “He’s in an unstable state of mind, constantly changing his opinions and moods.”
In a conversation about relationships, someone might say, “It’s hard to be in a stable relationship with someone who is emotionally unstable.”
A person might comment, “The unstable economy has caused a lot of uncertainty and anxiety among the population.”

21. Crazed

This term is used to describe someone who is mentally unstable or irrational. It implies a state of madness or frenzy.

For example, “The crazed man was shouting and running through the streets.”
In a discussion about horror movies, someone might say, “The killer’s crazed expression added to the suspense.”
A person describing a chaotic situation might say, “It was like a crazed stampede, with people pushing and shoving.”

22. Screw loose

This phrase refers to someone who is mentally unstable or has some kind of psychological issue. It suggests that there is something not quite right or functioning properly in their mind.

For instance, “He’s got a screw loose. He talks to himself and believes in conspiracy theories.”
In a conversation about strange behavior, someone might say, “You can tell she’s got a screw loose by the way she dresses.”
A person describing an unpredictable individual might say, “You never know what he’s going to do next. He’s got a few screws loose.”

23. Out to lunch

This phrase is used to describe someone who is mentally unstable or acting in a bizarre or irrational way. It suggests that the person is not fully present or mentally engaged.

For example, “She’s completely out to lunch. She’s been talking to imaginary friends all day.”
In a discussion about eccentric behavior, someone might say, “His fashion choices are definitely out to lunch.”
A person describing someone’s erratic actions might say, “He’s out to lunch if he thinks he can get away with that behavior.”

24. Cracked

This term is used to describe someone who is mentally unstable or has some kind of psychological issue. It suggests that the person’s mind is damaged or broken in some way.

For instance, “He’s cracked. He sees things that aren’t there and talks to himself.”
In a conversation about odd behavior, someone might say, “You can tell she’s cracked by the way she acts.”
A person describing an unpredictable individual might say, “He’s cracked. You never know how he’s going to react to anything.”

25. Wackadoodle

This term is used to describe someone who is eccentric, strange, or mentally unstable. It is a playful and lighthearted way to refer to someone who is a bit off or unusual.

For example, “She’s a total wackadoodle. She wears mismatched socks and sings to her plants.”
In a discussion about quirky individuals, someone might say, “He’s a wackadoodle. He collects rubber ducks and wears a different hat every day.”
A person describing someone’s unconventional behavior might say, “She’s a bit of a wackadoodle, but she’s harmless.”

26. Off the rocker

This phrase is used to describe someone who is behaving in a way that is irrational or insane. It suggests that the person has lost touch with reality or is acting in an unpredictable manner.

For example, “He’s completely off his rocker. He’s been talking to himself all day.”
In a discussion about strange behavior, someone might say, “That guy is definitely off his rocker.”
When describing someone’s actions, a person might say, “She went off her rocker and started throwing things.”

27. Batshit crazy

This phrase is used to emphasize someone’s level of insanity or irrational behavior. It suggests that the person’s behavior is so extreme that it is comparable to someone who is mentally unstable.

For example, “He’s batshit crazy. He thinks he can communicate with aliens.”
In a discussion about bizarre actions, someone might say, “That’s batshit crazy! Who would do something like that?”
When describing someone’s behavior, a person might say, “She went batshit crazy and started screaming at everyone.”