smoking UK /ˈsməʊkɪŋ/US /ˈsmoʊkɪŋ/noun 6adjective 3forms 3phrases 1 noun6 •the act of burning a drug and breathing it in, most often from a cigarette •The burning and inhalation of tobacco.Smoking can lead to lung cancer. •The burning and inhalation of cigarettes.He had the loudest voice of any drill sergeant, and seemed to enjoy the group smokings as well as the individual smokings. — 2012 •The act of exposing (something) to smoke; (by extension) the process by which foods are cured or flavored by smoke. •The act or process of emitting smoke. •(slang, no longer used) A bantering; teasing; mockery. adjective3 •Giving off smoke. •(slang) Sexually attractive, usually referring to a woman.That woman is smoking! •(slang) Showing great skill or talent.The band put on a smoking performance. formssmokings · more smoking · most smoking Phrases with smoking smoking gunEvidence, particularly of a crime, that is difficult or impossible to dispute.