no-no Hear it!

no-no definition

☆ no·-no (nō′nō′)

noun pl. no-nos -·nos′

Slang something that is forbidden or considered unwise to do, say, use, etc.

Etymology: < No! No!, as said in admonishing a young child

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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