dunk'n donuts Share definition Flag The act of holding donuts with your penis, and dipping then into a cup of scalding coffee. Bill had been dunk'n donuts all night, and had to go to the hospital to treat burns to his penis. dunk'n donuts by FurEter February 8, 2014 0 0 Get merch Get the dunk'n donuts mug. Buy Now — $32.95 See more merch