The Shammy Shits Share definition Flag The diarrhea and or gas one gets after drinking a McDonald’s Shamrock Shake. Dude I had the shammy shits last night after that shake. The Shammy Shits by Memely_dayz March 19, 2021 0 0 Get merch Get the The Shammy Shits mug. Buy Now — $32.95 See more merch