slang - noun

informal language consisting of words and expressions that are not considered appropriate for formal occasions; often vituperative or vulgar

a characteristic language of a particular group (as among thieves)

slang - verb

• use slang or vulgar language
• fool or hoax
• abuse with coarse language

slang - thesaurus

argot   befool   cant   cod   dupe   fool   gull   jargon   lingo   patois   vernacular