To insert a lit cigarette in one's anus, and then fart with the intention of lighting the fart. Most often done with the lit end facing out, but can done lit end inside.
Originally a hazing ritual performed by British headmasters on boarding school students.
bumsmoke is now at large in Australia avoiding work, the Old Bill and the IRA.
Although originally english and proud it's now thought his jingoism has followed him down under and is now heard to be shouting "FCUK ST GEORGE!" and "FCUK YOU POMS!"