poison-pen Hear it!

poison-pen definition

poison-pen (po̵i′zən pen′)

adjective

Informal designating or of an abusive letter written out of spite or malice, usually anonymously, to harass the recipient

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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