molly, n.² — Green’s Dictionary of Slang

molly n.²

[play on SE black molly, a species of tropical fish, which the black pills may be seen as resembling]

1. (US drugs) usu. in pl. mollies, amphetamines; usu. as blue mollies, black mollies, or even yellow mollies.

1975		L. Dills CB Slanguage.
1976		Lieberman & Rhodes CB Hbk 132: Mollies — Uppers or sleep-retarding pills.
2003		Sl. Synonyms for Drugs on Ajax.org 🌐 nembutal yellow mollies.
2021		Central Cee ‘6 for 6’ 🎵 Sold cocaine, and molly, and all.

2. MDMA [abbr. molecule].

2012		Guardian 3 Aug. 🌐 Even the drugs have been rebranded: ‘molly,’ the big new chemical craze, is just ecstasy in powder form (and reputedly purer and stronger) .
2012		Chief Keef ‘Love Sosa’ 🎵 Tadoe off the Molly water / So nigga be cool like water.
2014		N. Kolicki ‘Poachers’ in ThugLit Sept. [ebook] Our pal was straight E-tarded. Whatever soiree he just came from, the party favors were Molly.
2014		C. Eble (ed.) UNC-CH Campus Sl. Spring 2014 10: MOLLY — blend of synthetic hallucinogens, usually in pill form.
2022		J. Hannaham Didn’t Nobody Give a Shit 20: [A] good place to stow a shank or stash some molly.

3. (US drugs/prison) GHB (gamma hydroxybutyrate) a depressant aka the ‘date rape drug’.

2022

J. Hannaham Didn’t Nobody Give a Shit 188: [He] askin me do I want some m-o-l-l-y [...] in the wayback we called that shit GHB.

black mollies (n.)

(US drugs) amphetamine.

1977		L. Young et al. Recreational Drugs.
1979		D. Gram Foxes (1980) 40: Sweet things, like [...] Black Mollys and even some Wild Turkey.
2000		J. Ellroy ‘Grave Doubt’ in Destination: Morgue! (2004) 108: He boozed. He sniffed coke. He smoked weed. He popped black mollys.