stanky mudflaps Share definition Flag A vagina so worn out that the labia(lips) hang low like a nutsack. I told the bitch to roll up her stanky mudflaps because she was attracting seagulls. stanky mudflaps by tjfidi9frigigkiigifigrumpySeaw March 29, 2017 0 0 Get merch Get the stanky mudflaps mug. Buy Now — $32.95 See more merch