fantapillacupism Share definition Flag The act of peeing in a cup while someones not looking then watching them drink it. "ahhh dude what's with the fantapillacupism that tasted nasty!!" fantapillacupism by TheCatInTheHat234 January 23, 2009 0 0 Get merch Get the fantapillacupism mug. Buy Now — $32.95 See more merch
