<p><strong>Noun</strong></p><ul><li>very informal usage in vocabulary and idiom that is characteristically more metaphorical, playful, elliptical, vivid, and ephemeral than ordinary language.</li><li>speech and writing characterized by the use of vulgar and socially taboo vocabulary and idiomatic expressions.</li><li>the jargon of a particular class, profession, etc.</li><li>the special vocabulary of thieves, vagabonds, etc.; argot.</li></ul><p><strong>Synonyms</strong></p><ul><li>cant</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to use slang or abusive language.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to assail with abusive language.</li></ul>