Resin A sticky brown residue deposited in smoking utensils via combustion of marijuana.
Resonate To strengthen and concentrate your weed.
Roach What is left of a joint after it has become so small that it's difficult to smoke. It is strong because it catches and concentrates the resin of the joint.
Roach-clip A device for holding a roach.
Roller A device used to facilitate joint rolling.
Rolling paper Thin paper used to form marijuana cigarettes.