Chestnut-head motherfucker Share definition Flag A person with a grossly misshapen head, who most likely fucks their own mother all day long. Look at this "chestnut-head motherfucker". Chestnut-head motherfucker by adamoccity December 31, 2011 0 0 Get merch Get the Chestnut-head motherfucker mug. Buy Now ā $32.95 See more merch