crap muffin Share definition Flag Taking your crap and baking it into muffins (blueberries or poppie seeds for best results); give it to n00bs you want to pwn. Give that n00b some crap muffins! crap muffin by Rubble D September 8, 2006 0 0 Get merch Get the crap muffin mug. Buy Now — $32.95 See more merch