definition of
slang

[1] #1 slang n. [slang expression, slang term] 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". wn

[2] #2 slang v. use slang or vulgar language. wn

[3] #3 slang n. [cant, jargon, lingo, argot, patois, vernacular] a characteristic language of a particular group (as among thieves); "they don't speak our lingo". wn

[4] #4 slang v. [gull, dupe, befool, cod, fool, put on, take in, put one over, put one across] fool or hoax; "The immigrant was duped because he trusted everyone"; "You can't fool me!". wn

[5] #5 slang v. abuse with coarse language. wn