umomc Share definition Flag popularized by goons, for when you don't have a decent comeback to getting roasted"umomc" stands for Ur Mom On My Cock anyone: wtf dude, why didn't you flash? R300G (Wukong): umomc umomc by uzuy November 16, 2020 0 0 Get merch Get the umomc mug. Buy Now — $32.95 See more merch
