cheap shot

cheap shot idiom
An unfair or unsporting verbal attack, as in You called him an amateur? That's really taking a cheap shot. The term originated in sports, especially American football, where it signifies deliberate roughness against an unprepared opponent. [Slang; second half of 1900s]

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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