rat out

زیراب زدن، لو دادن

رسوا کردن کسی، پته کسیو رو آب ریختن
I can't believe you ratted me out like that to Mom and Dad—I'm never telling you anything ever again!
The criminal ratted out his accomplices to avoid jail time

to divulge the bad thing someone has done

جاسوسی کردن

فروختنِ کسی، لو دادن