Green’s Dictionary of Slang

locker room n.

[its association with all-male amusements]

(drugs) isobutyl nitrite, amyl nitrite.

1989–2003		R.O. Scott Gay Sl. Dict. 🌐 amyl nitrite: [...] Syn: locker room.
2001		ONDCP Street Terms 14: Locker room — Isobutyl nitrite; inhalants.