PCP is placed randomly somewhere inside a joint (by a "non-partaking" member) the rest is filled with plastic. The next step is to have 2 - 4 participants that smoke the joint until someone hits the PCP. The person who hits the PCP is considered the loser.
Person 1: Gosh my throat hurts
Person 2: Why, smoking to much weed?
Person 1: Nah me and the boys played a few rounds of Jamaican Roulette last night