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noun
A whimsically eccentric person.
synonyms: crackpot, crank, fruitcake, nut, screwball.
is a specific kind of: eccentric, eccentric person, flake, geek, oddball.
derivation: crazy, half-baked, screwball, softheaded.
Dutch: excentriekeling
Find more on nut case elsewhere: etymology - rhymes - Wikipedia.
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