stab in the back, a
A betrayal of trust, an act of treachery, as in Voting against our bill at the last minute was a real stab in the back. It is also put as stab someone in the back, meaning “betray someone.” For example, Don't trust George; he's been known to stab his friends in the back. Both the noun and verb forms of this idiom, alluding to a physical attack when one's back is turned, date from the early 1900s.
THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?
Example sentences from the Web for stab in the back, a
France 24 is providing live, round-the-clock coverage of both scenes as they progress.
Think back to the Bush-Kerry race of 2004, the Thrilla in Vanilla.
Back in New York, the slow pace and inward focus of her yoga practice was less fulfilling.How Taryn Toomey’s ‘The Class’ Became New York’s Latest Fitness Craze|Lizzie Crocker|January 9, 2015|DAILY BEAST
Music is a huge part of the tone of Black Dynamite overall—going back to the original 2009 movie on which the series is based.‘Black Dynamite’ Presents Police Brutality: The Musical|Stereo Williams|January 9, 2015|DAILY BEAST
The al Qaeda-linked gunmen shot back, but only managed to injure one officer before they were taken out.
I waited three months more, in great impatience, then sent him back to the same post, to see if there might be a reply.The Boarded-Up House|Augusta Huiell Seaman
Ages back—let musty geologists tell us how long ago—'twas a lake, larger than the Lake of Geneva.
The boys were tumbling about, clinging to his legs, imploring that numerous things be brought back to them.
With a suffocating gasp, she fell back into the chair on which she sat, and covered her face with her hands.The Pastor's Fire-side Vol. 3 of 4|Jane Porter
She was holding the back of her chair with one hand; her loose sleeve had slipped almost to the shoulder of her uplifted arm.