wacko Hear it!

wacko definition

☆ wacko (wak′ō)

adjective

Slang wacky

Etymology: see -o

noun pl. wackos -·os

Slang a person who is wacko

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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