crackup: Meaning and Definition of

crack•up

Pronunciation: (krak'up"), [key]
— n.
  1. a crash; collision.
  2. a breakdown in health, esp. a mental breakdown.
  3. collapse or disintegration: the crackup of an alliance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
crack the whip cracky
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