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out of whack
From The Collaborative International Dictionary of English v.0.48:
Whack \Whack\, n. 1. A smart resounding blow. [Colloq.] [1913 Webster] 2. A portion; share; allowance. [Slang] [Webster 1913 Suppl.] 3. an attempt; as, to take a whack at it. [Colloq.] [PJC] Out of whack, out of order. [Slang] [Webster 1913 Suppl.]