Fat Stewie Share definition Flag When a well endowed man is giving anal sex to a woman and she orgasms, losing control of her bowels and spewing "stew"-like poo. Damn, I had to take another shower after I gave that bitch a Fat Stewie last night! Fat Stewie by Tina/Kevin January 3, 2009 0 0 Get merch Get the Fat Stewie mug. Buy Now — $32.95 See more merch
