Idiom: a stab in the back = an action or way of behaving that hurts someone who trusts you; an act of betrayal: I cant believe that someone I had helped and supported would steal from me. Its a real stab in the back. #IdiomCards ━━━━━━━━━━━━━━━ ☞» @CambridgeWords ☞» @PhrasalVerbsIdioms ☞» @American_English_Club 184 views04:33