look daggers

look daggers idiom
Glare, stare fiercely, as in When she started to discuss their finances, he looked daggers at her. This metaphoric term, likening an angry expression to a dagger's thrust, dates from ancient times and has appeared in English since about 1600.

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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