frunkadunk Share definition Flag Badunkadunk in the front. Can be used when someone is: -Fat -Big Boobed -Has a hill for a vagina Me:"Man, that chick has some mayor frunkadunk going on. She must be sweatin' Double D's!" Him:"Yeah!" frunkadunk by Joey Noh January 27, 2009 0 0 Get merch Get the frunkadunk mug. Buy Now — $32.95 See more merch