British slang - Alternate name for a
Camberwell Carrot,
Doobey,
Phat one,
Reefer,
Jingo or, of course,
Joint.
I don't know the source of this name, but it is certainly common parlance amongst my friends in the West Midlands and London.
Sample usage:
Q. "You got a Bifta on the go there, mate?"
A. "Why yes my good fellow! I done scored me some chronic sensimillia down the frontline! Would you care to partake of an inhalation?"