bootyfrack Share definition Flag Anal penetration (penis, dildo, etc) esp. pertaining to anal sex while trying to elicit the expulsion of gas from the digestive tract. Damn girl I'm about to bootyfrack that ass. bootyfrack by Truedusk April 13, 2015 0 0 Get merch Get the bootyfrack mug. Buy Now — $32.95 See more merch