Slang Dictionary

coo-coo definition

and cuckoo
  1. mod.
    unconscious. : I socked him on the snoot and knocked him coo-coo.
  2. mod.
    insane. : How did I ever get involved in this cuckoo scheme, anyway?
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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