An act of retaliation/revenge by pissing on someone.

Most common occurences of peevenge happen in bars when drunken douchebags push a person into a urinal they're currently pissing in, splashing piss on them and having their dick touch the inside of the urinal wall, which prompts the person/pisser (in a fit of rage) to piss on the douchebag.

This technique is typically mastered by spinning a quick 360 in mid stream after the push has occured.

*Warning beware of Mock Pee post Peevenge