Top Definition
A person who is off his or her rocker; someone who is crazy or weird. Someone who does weird things, says crazy stuff, etc.
A few screws loose: "Jeffrey Dahmer, the American serial killer who would eat his victims, had more than his fair share of missing screws."
#nutjob #whacko #whack-job #lunatic #physcho.
by FrozYo January 05, 2011
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