Rusty coke butt Share definition Flag When you put it in someone's butthole and pullout and they proceed to do a line of cocaine off of your shit covered dick Guy: hey I heard you hooked up with Katie dMe: yeah we did a rusty coke butt Rusty coke butt by Lojoooo June 23, 2017 0 0 Get merch Get the Rusty coke butt mug. Buy Now — $32.95 See more merch