1.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
2.a characteristic language of a particular group (as among thieves);
they don't speak our lingo
1.use slang or vulgar language
2.fool or hoax;
The immigrant was duped because he trusted everyone
3.abuse with coarse language
俚語,行話,黑話,切口