Goomba fiz Share definition Flag A dirty Italians man seminal fluid, ussually smelling of Pasta and sweaty chest hair. Then Vanni put Goomba Fiz on adams cheek and when he woke up he yelled "ew what smalls like cheap spaghetti" Goomba fiz by Finlay33146 April 15, 2008 0 0 Get merch Get the Goomba fiz mug. Buy Now — $32.95 See more merch