turd biscuit Share definition Flag A hunk of poo that is reliquished from the anus in a shape similar to a hockey puck. These are a rarity. Julia is so lucky, she unleashes turd biscuits on the dizzle, I'm so jealous. turd biscuit by nutsmcphee June 26, 2009 0 0 Get merch Get the turd biscuit mug. Buy Now — $32.95 See more merch