polvo, n. — Green’s Dictionary of Slang

polvo n.

[Sp. polvo, powder, dust; polvo de angel, angel powder]

1. (drugs) heroin.

2001

ONDCP Street Terms 17: Polvo (Spanish) — Heroin; PCP.

2. (also polvo de angel) phencyclidine.

1980		‘Gloss. of Drug Terms’ National Instit. Drug Abuse.
2001		ONDCP Street Terms 17: Polvo (Spanish) [...] Polvo de angel (Spanish) — PCP.