1. A characteristic language of a particular group
   "they don't speak our slang";
   - cant, jargon, lingo, argot, patois, vernacular
    
2. Informal language consisting of words and expressions that are not considered appropriate for formal occasions; often vituperative or vulgar
   "their speech was full of slang expressions"; "The teacher asked students to avoid using slang terms in their essays";
   - slang expression, slang term

1. Use slang or vulgar language
   "The teenagers slanged constantly, confusing their parents"
    
2. [archaic, informal] Fool or hoax
   "The con artist slanged tourists with fake tickets";
   - gull, dupe, befool [archaic], cod [Brit, informal], fool, put on, take in, put one over [informal], put one across [informal]

Derived forms: slanged, slanging, slangs

Type of: betray, deceive, lead astray, non-standard speech, speak, talk

Encyclopedia: Slang