fat on a stick Share definition Flag derived from the ancient delicacy of pepperettes, which are intensely fat-laden mini-pepperoni sausages. boy: Hey mom, can I have a fat on a stick? mother: Go ahead son fat on a stick by T. Walsh / Ronan XVII January 4, 2005 0 0 Get merch Get the fat on a stick mug. Buy Now — $32.95 See more merch