Fart Marmot Share definition Flag When a girl has a hairy asscrack it is considered a fart marmot. "Holy crap, when she bent over you could see her hairy fart marmot." Fart Marmot by kattih February 9, 2009 0 0 Get merch Get the Fart Marmot mug. Buy Now — $32.95 See more merch