from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Slang Trifling; nearly valueless.
  • adj. Slang Ludicrous; nonsensical: gave me a cockamamie reason for not going.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. foolish, silly
  • adj. trifling

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

  • adj. ludicrous, foolish


Probably alteration of decalcomania.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From French; derived from décalcomanie, a word used to describing the popular use of children's rub-on tattoos or other transfer decals. Sometimes erroneously claimed to derive from Yiddish (Wiktionary)



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