Green’s Dictionary of Slang

(US drugs) second-rate marijuana.

1992		RBL Posse ‘Don’t Give Me No Bammer’ 🎵 Straight dank, fuck a bammer joint.
1995		L. Stavsky et al. A2Z 5: bammer – low-grade marijuana: That bammer is worthless.
1999		New Directions Program 🌐 Street terms for marijuana/hash [...] The term ‘chronic’ refers to very potent marijuana on a continuum. The terms ‘bammer’ and ‘schwag’ refers to less potent marijuana on a continuum.
2001		ONDCP Street Terms 2: Bammies — A poor quality of marijuana.
2002		Teen Lingo: The Source for Youth Ministry 🌐 bammer n. The cheaper, brown leaf marijuana.
2012		Gangrene ‘Due Work’ 🎵 Y’all smoke bammer till it’s gone.