Umpties Share definition Flag An umptie is anything that will fuck you up. Alcohol, Marijuana, Acid, things like that. But it is a secretive term...shhhhh! Yo man you got my umpties? I'm not tryin' to remember tonight! Umpties by Ross Mofuckin' L July 5, 2006 0 0 Get merch Get the Umpties mug. Buy Now — $32.95 See more merch
