Definition of ashcans:
(n) :
A dustbin, trash can, or the like.
(n) :
A container for collecting ashes, especially from wood and coal fires, for eventual disposal elsewhere.
(v) :
(transitive, informal) To throw out like rubbish; to ditch or trash.
(adj) :
Of or pertaining to the Ashcan School of American art.
(adj) :
Describing a comic book originally published solely to retain ownership of a trademark, not intended for general release; later used for promotional comic books intended for limited release to the public.
(n) :
(US, slang) A kind of large firecracker.