The practice of sprinkling marijuana over a bowl of crack, and then smoking it. The marijuana often covers the crack from view to lead unsuspecting tokers into their first rock hit.
Randy: Man, I'm high as SHIT! What kind of crazy weed is this?
Dandy: That aint the weed, it's the crack! You're smoking weed on the rocks tonight!
Dandy: That aint the weed, it's the crack! You're smoking weed on the rocks tonight!
by The Freaky Greeky December 29, 2007
Get the Weed on the Rocksmug.