Frosty Donut Share definition Flag When one cums on a girl's hairy asshole, and lets the wad harden and "frost" the area around her hole. I pulled out Mary's ass and left her a frosty donut. Frosty Donut by Mark Nolan November 19, 2006 0 0 Get merch Get the Frosty Donut mug. Buy Now — $32.95 See more merch