Main entry: vernacular, patois, cant, slang, argot, jargon, lingo
Definition: a characteristic language of a particular group (as among thieves)
Usage: they don't speak our lingo
Main entry: slang, slang expression, slang term
Definition: informal language consisting of words and expressions that are not considered appropriate for formal occasions; often vituperative or vulgar
Usage: their speech was full of slang expressions
Main entry: slang
Definition: abuse with coarse language
Main entry: take in, befool, put on, put one across, put one over, gull, fool, dupe, slang, cod
Definition: fool or hoax
Usage: The immigrant was duped because he trusted everyone; You can't fool me!
Main entry: slang
Definition: use slang or vulgar language