Green’s Dictionary of Slang

paradise (white) n.

(drugs) cocaine.

1971		Illinois Legislative Investigating Committee Drug Crisis in Spears (1986).
1977		S.N. Pradhan Drug Abuse.
2000		J. Baker Chinese Girl (2001) 12: The names themselves began to make you free. Paradise white, Quicksilver, Rainbows, Satan’s secret, Blowcaine.
2001		ONDCP Street Terms 16: Paradise — Cocaine.