splizzard Share definition Flag (n.) When you go to take a piss and it comes out fine, then all out of nowhere, the stream splits and sprays all over your pants! I had to stay in the bathroom for 30 minutes so my pants would dry after that splizzard! splizzard by Greg S. S. November 3, 2007 0 0 Get merch Get the splizzard mug. Buy Now — $32.95 See more merch