P is for Pelones (los): sicarios that were originally assembled by the Beltran Leyva brothers for the Sinaloa Federation
P is for Perico or cocaine. A parrot. Nickname based on the idea that it "goes up the nose".
P is for pez gordo (m.): big fish, big boss
P is for PGR: La Procuraduria General de la Republica. The institutional agency of the Mexican Attorney General
P is for pist: the 'game'. Literally, 'the track' as in racing. Refers to the business at hand.
P is for Plaza: Territory, turf. Can also refer to the product being moved or in dispute.
P is for PROCAMPO: Federal program to provide financial support for farmers and ejiditarios. Recent revelations indicate that it has been a cash-cow for agribusiness and PRI party members. Little of the original program (to provide irrigation etc.) has benefitted the poorest farmers.
P is for Project Gunrunner: US DOJ and ATF plan to disrupt illegal flow of guns from US into Mexico.