Get in someone's face. Annoy or pester someone. For example, He's always getting in my face when I'm trying to meet a deadline. Closely related is the imperative, get out of my face, meaning “stop annoying me,” as in Get out of my face before I punch you! [Slang; 1920s]

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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