slang A device used for the smoking of substances like hashish and marijuana. I've never used a hash cannon before—how does it work?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a device used in the smoking of cannabis. (see also shotgun.) Don had a hash cannon in his office as a sample of a device for smoking pot.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.