kiss off

kiss off idiom
  1. Dismiss or reject, as in He kissed off their offer. This usage alludes to kissing something goodbye [Slang; c. 1900]
  2. Be forced to give up or regard as lost, as in You can kiss off that promotion. [Slang; late 1940s]
  3. Get out, go away, as in She told the reporters to kiss off. [Slang; early 1990s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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