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1. A kind of language occurring chiefly in casual and playful speech, made up typically of coinages and figures of speech that are deliberately used in place of standard terms for added raciness, humor, irreverence, or other effect.
2. Language peculiar to a group; argot or jargon: thieves' slang.
v. slanged, slang·ing, slangs
1. To use slang.
2. To use angry and abusive language: persuaded the parties to quit slanging and come to the bargaining table.
To attack with abusive language; vituperate: "They slanged each other with every foul name they had learned from the age of three" (Virginia Henley).