Psycho

usgb/ˈsaɪkəʊ/
noun

A person who is mentally ill, especially in a way that makes them behave violently towards others.

After watching a horror movie, he teasingly called his friend a psycho for liking such violent films.
Visual representation of "psycho" - A person who is mentally ill, especially in a way that makes them behave violently towards others.

Often appears as...

  • act like a psycho
  • call someone a psycho

Usage tips

Informal, Disapproving

Colloquial

Definition 1 of 3
Visual representation of "psycho"
LampPro Tip 1/3

Figurative Usage

Often used non-literally to describe someone acting irrationally or unpredictably without being mentally ill.

Illustration for Figurative Usage
She went psycho over the surprise party plans.
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Negative Connotation

Using 'psycho' can be offensive; it stigmatizes mental illness.

Illustration for Negative Connotation
It's unfair to label him a psycho just for getting angry.
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Informal Context

'Psycho' is casual and may not be appropriate in formal or sensitive situations.

Illustration for Informal Context
In formal discussions, use 'person with a mental illness' instead of 'psycho'.
Visual representation of the word "Psycho"

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