Muffin Pants Share definition Flag This is when you wear your pants around your waist to tight and a roll of fat hangs over the egde, just like a muffin! OMG look at the fat hanging off around the pants. Yeah thats a muffin pants Muffin Pants by Sam June 26, 2004 0 0 Get merch Get the Muffin Pants mug. Buy Now — $32.95 See more merch