rat on

US /ræt ɑːn/
UK /ræt ɑːn/
"rat on" picture
1.

donosić na, kablować na

to inform on someone, especially to an authority

:
He threatened to rat on his friends if they didn't help him.
Groził, że doniesie na swoich przyjaciół, jeśli mu nie pomogą.
She decided not to rat on her brother, even though he broke the rules.
Postanowiła nie donosić na brata, mimo że złamał zasady.