Aversion therapy

Aversion therapy is a psychological behavior therapy which seeks to rid an individual of an undesired behavior by pairing that behavior with an aversive consequence.

So if every time an individual went to smoke he was given a painful shock, or if his cigerettes had been laced with a substance that induces vomiting, those would be examples of aversion therapy.

Sources

Abnormal Psychology, Rosenhan & Seligman, 1984