Gwabermellon Share definition Flag 1) A large hairy, smelly man sack with FumundaCheese.(See FumundaCheese) "Monessa likes the smell of Gwabermellon" Gwabermellon by Christopher Mitchell January 6, 2005 0 0 Get merch Get the Gwabermellon mug. Buy Now — $32.95 See more merch