horsemussen Share definition Flag The mussening of a horse. Mussening is an ancient word only I know so sorry can't help you "Holy crap that is uber horsemussenry" (That is the act of super mussening a horse horsemussen by boy who wants definition of horsemussen September 13, 2007 0 0 Get merch Get the horsemussen mug. Buy Now — $32.95 See more merch
