Messy Guissepie Share definition Flag when you cum on someones upper lip while they are sleeping and it dries so it looks like a cum-mustache that dick just gave me a messy guissepie! Haha! I still see your cumstache Messy Guissepie by poonchasers June 13, 2008 0 0 Get merch Get the Messy Guissepie mug. Buy Now — $32.95 See more merch