Fatty Mooseknuckle Share definition Flag A fat ugly girl with a huge cameltoe or fat pouch extruding from her pelvis area. "Damn dude, that Melissa is a Fatty Mooseknuckle!" Fatty Mooseknuckle by BxB August 29, 2005 0 0 Get merch Get the Fatty Mooseknuckle mug. Buy Now — $32.95 See more merch
