smoker

A person who smokes tobacco habitually.
A smoking car on a train.
(dated, informal) An informal social gathering for men only, at which smoking tobacco is allowed.
(UK, dated, informal) A social event featuring sketches, songs, etc., whether or not smoking is carried out.
A vent in the deep ocean floor from which a plume of superheated seawater, rich in minerals, erupts.
(slang) An illicit boxing match; see Wikipedia:Battle Royal (boxing).
A device that releases smoke intended to distract bees; a bee smoker.
A person or an apparatus that smokes food.
(slang) A two-stroke engine.
(broadly, slang) Any vehicle with a two-stroke engine, especially a motorcycle, as opposed to a four-stroke motorcycle or stroker.
(informal) A fastball.
(slang) Synonym of stag film.