Pink Flub Share definition Flag Pink Flub is slang for a fat womans vagina. Dale: jr said that i could borrow his wifes pink flub while he was out of town for the tony stewart engine, bait and tackle convention. Pink Flub by fat obese lady July 16, 2017 0 0 Get merch Get the Pink Flub mug. Buy Now — $32.95 See more merch