Shitamus maximus Share definition Flag Your gluteus maximus becomes a Shitamus maximus when your taking a shit on the shitter. "Tylers gluteus maximus quickly became a shitamus maximus when he ate at taco bell" Shitamus maximus by mommyallana December 20, 2023 0 0 Get merch Get the Shitamus maximus mug. Buy Now — $32.95 See more merch