Meaning of the word "have a screw loose" in English

What does "have a screw loose" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

have a screw loose

US /hæv ə skruː luːs/
UK /hæv ə skruː luːs/
"have a screw loose" picture

Idiom

1.

to be slightly mad or eccentric

Example:
I think he might have a screw loose; he talks to himself all the time.
Only someone who has a screw loose would try to climb that mountain in winter.
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