Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A crazy or eccentric person.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun humorous An eccentric or odd person.
  • noun pejorative, slang Someone who is insane.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun someone deranged and possibly dangerous

Etymologies

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