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Definition of Nutcase
1. Noun. Someone deranged and possibly dangerous. 
Exact synonyms: Crazy, Looney, Loony, Weirdo
Language type: Colloquialism
Generic synonyms: Lunatic, Madman, Maniac
Language type: Colloquialism
Generic synonyms: Lunatic, Madman, Maniac
Definition of Nutcase
1. a crazy person [n -S]



