buntslut Share definition Flag A person, usually a woman, who will do anything (especially sexual favours) to score a free hit of intravenously administered drugs. I just scored some heroin and that buntslut just sucked me off for a hit! buntslut by fitchybister February 22, 2011 0 0 Get merch Get the buntslut mug. Buy Now — $32.95 See more merch