fare il culo

to kick someone's ass; to give someone hell or get them into serious trouble

→ fare
phrase Uncommon #17,325
to kick someone's ass; to give someone hell or get them into serious trouble Vulgar and informal. The expression can refer to physically beating someone, defeating them decisively, or harshly reprimanding them, depending on context.
IT: Se mi fai arrabbiare, ti faccio il culo!
EN: If you make me angry, I’ll kick your ass!