Green’s Dictionary of Slang

(drugs) cocaine.

1935		A.J. Pollock Und. Speaks.
1944		Maurer & Baker ‘“Aus.” Rhyming Argot’ in AS XIX:3.
1953		Anslinger & Tompkins Traffic In Narcotics 303: big bloke. Cocaine.
1959		J.E. Schmidt Narcotics Lingo and Lore.
1969		R.R. Lingeman Drugs from A to Z (1970) 45: big bloke cocaine.
1971		E.E. Landy Underground Dict. (1972).
2001		ONDCP Street Terms 3: Big bloke — Cocaine.
2002		B. Kirkpatrick Wicked Cockney Rhy. Sl.