Definitions by TDK52

U.P.S 

Up Skirt.

a abbreviation used to state a up skirt.
ex. a girl sitting down with her legs open and u can see up her skirt

guy 1: hey dude hella u.p.s right behind us!
guy2: omg niice, so hot.

U.P.S by TDK52 May 29, 2008