semen stew Share definition Flag (n.) The result of a long bukkakesession. At first it's a stew, later it becomes a crust, usually around the chin. Look at the semen stew on that girl's face. That'll crust any minute now. YUMMY! semen stew by zorpidus April 16, 2004 0 0 Get merch Get the semen stew mug. Buy Now — $32.95 See more merch