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

1.
mengkhianati, menganiaya
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.
Saya tidak percaya dia mengkhianati abangnya sendiri dengan mencuri idea perniagaannya.
•
The company did the dirty on its employees by cutting their benefits without warning.
Syarikat itu menganiaya pekerjanya dengan memotong faedah mereka tanpa amaran.