Definitions

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

  • adjective Eccentric or irrational.
  • adjective Crazy; silly.

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

  • noun Alternative form of wacke.
  • adjective Of a person or their behaviour, zany.

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

  • adjective informal or slang terms for mentally irregular
  • adjective ludicrous, foolish

Etymologies

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

[Variant of whacky, probably from the phrase out of whack; see whack.]

Examples

Comments

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  • This word has come to connote self-conscious, court-jester-style buffoonery, embarrassing to all concerned.

    A good example of the older, more straightforward sense of 'weird', 'absurd' or 'unusual' is the 1974 Dr Seuss book "Wacky Wednesday".

    November 17, 2007