bale, n. — Green’s Dictionary of Slang

bale n.

[SE bale, a (wrapped) bundle; note Landy, Underground Dict. (1971), states ‘seventy-five to 500 pounds of marijuana’]

(drugs) marijuana; usu. a pound in weight.

1969		R.R. Lingeman Drugs from A to Z (1970) 36: bale A pound of marijuana.
1971		E.E. Landy Underground Dict. (1972).
1974		H. Levin Bandiet 120: A ‘bale’ of boom could be bought on the black market outside for about 50p.
1989		J. Morton Lowspeak 18: Bale – a pound or half kilo of marijuana.
2001		ONDCP Street Terms 2: Bale — Marijuana.