Green’s Dictionary of Slang

a smoker of cannabis.

2000		Indep. Rev. 7 Feb. 4: Pandora was pleased to see ex-toker Mo Molam taking the Government’s line on drugs so much straighter.
2009		Mail & Guardian (Johannesburg) 24 Sept. 🌐 But don’t tyell the old brass. She’ll clip you round the earhole. The ladies don’t really like a toker.
2013		K. Sampson Killing Pool 156: Probably tells his [social work] clients he’s an ‘occasional toker’ to earn their devotion and trust.