Tweenum Butter Share definition Flag (See "Fummunda Cheese") The buttery, funky residue that accumulates between two large breasteses. I tried to motorboat her, and all I got was a mouth full of Tweenum Butter. It burned my nose. Tweenum Butter by duckn March 9, 2012 0 0 Get merch Get the Tweenum Butter mug. Buy Now — $32.95 See more merch
