do the dirty on

US /duː ðə ˈdɜːr.t̬i ɑːn/
UK /duː ðə ˈdɜːr.t̬i ɑːn/
"do the dirty on" picture
1.

fare uno sgarbo a, tradire

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.
Non posso credere che abbia tradito suo fratello rubando la sua idea di business.
The company did the dirty on its employees by cutting their benefits without warning.
L'azienda ha fatto uno sgarbo ai suoi dipendenti tagliando i loro benefit senza preavviso.