Costlyscrew Share definition Flag A Costlyscrew is a word that defines an expensive sexual interaction. "Wow, this is the third condom I've put on, it's turning out to be one helluva Costlyscrew". Costlyscrew by superdame January 27, 2009 0 0 Get merch Get the Costlyscrew mug. Buy Now — $32.95 See more merch