have got a loose screw

(redirected from had got a few loose screws)

have got a loose screw

To be or seem particularly silly, eccentric, crazy, or mentally unstable. (Also written as "have got a screw loose.") That guy on the corner has definitely got a loose screw because he's been standing out there yelling obscenities at passersby all morning. My old Uncle Pete has got a few loose screws, but he's a really nice guy. What the matter with you? Have you got a loose screw, or what?
See also: have, loose, screw
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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