do the dirty on
US /duː ðə ˈdɜːr.t̬i ɑːn/
UK /duː ðə ˈdɜːr.t̬i ɑːn/

1.
배신하다, 부당하게 대우하다
to treat someone unfairly or badly, especially by cheating them or betraying them
:
•
I can't believe he did the dirty on his own brother by stealing his business idea.
그가 자기 형제의 사업 아이디어를 훔쳐서 배신했다니 믿을 수 없어.
•
The company did the dirty on its employees by cutting their benefits without warning.
그 회사는 예고 없이 직원들의 혜택을 줄여서 부당하게 대우했다.