poop smothie Share definition Flag A combination of fecal matter blended up like a malt, made to drink like a milk shake. See fecal fetish for more details. My boss enjoys a poop smoothie in the morning, he's a fecal freak! poop smothie by devilcrock666 August 7, 2003 0 0 Get merch Get the poop smothie mug. Buy Now — $32.95 See more merch