Est. at Wellsville High School in the boys' locker room showers after a victory in one sport or another, usu. football.
A victory slide consists of the shower floor being covered with soap while a naked individual "slides" across it on either his chest or back while yelling "Whoo!". Most of the time, the unlucky individual is pissed on.
Dude, I just got pissed all over while doing a victory slide!