deucifer Share definition Flag A shit that has some notable characteristic making it particularly heinous. Incredibly large/smelly/painful or horrible in other ways qualifies. "Dude, I just took Satan's own shit. Your bathroom is now possessed by Deucifer! deucifer by John April 9, 2008 0 0 Get merch Get the deucifer mug. Buy Now — $32.95 See more merch