rub one out

== English == === Etymology === From the notion of rubbing out seminal ejaculate of one’s penis. === Pronunciation === === Verb === rub one out (third-person singular simple present rubs one out, present participle rubbing one out, simple past and past participle rubbed one out) (intransitive, slang, vulgar) To masturbate. Synonyms: jerk one out, rub one off, rub oneself off; see also Thesaurus:masturbate