dro cup Share definition Flag A styrofoam cup with a straw used to smoke blunts. You simply sip on the straw and you're smoking the marijuana. They don't know that I'm smoking, I have a dro cup dro cup by DOWJONES1738 January 26, 2016 0 0 Get merch Get the dro cup mug. Buy Now — $32.95 See more merch
