[urinpact] Share definition Flag The force of your piss hitting the water in a toilet. Increases when you push hard or really have to piss. God ive been holding it in forever!! I had so much urinpact [urinpact] by Davion Williams January 10, 2009 0 0 Get merch Get the [urinpact] mug. Buy Now — $32.95 See more merch