Slang consists of words, expressions, and meanings that are informal and are used by people who know each other very well or who have the same interests. Archie liked to think he kept up with current slang. very informal, sometimes offensive, language that is used especially by people who belong to a particular group, such as young people or criminals. Nonstandard vocabulary of extreme informality, usually not limited to any region. It includes newly coined words, shortened forms, and standard words used playfully out of their usual context. Slang is drawn from the vocabularies of limited groups: cant, the words or expressions coined or adopted by an age, ethnic, occupational, or other group (e.g., college students, jazz musicians); jargon, the shoptalk or technical terminology specific to an occupation; and argot, the cant and jargon used as a secret language by thieves or other criminals. Occupying a middle ground between standard and informal words accepted by the general public and the special words or expressions of these subgroups, slang often serves as a testing ground for words in the latter category. Many prove either useful enough to become accepted as standard or informal words or too faddish for standard use. Blizzard and okay have become standard, while conbobberation ("disturbance") and tomato ("girl") have been discarded. Some words and expressions have a lasting place in slang; for instance, beat it ("go away"), first used in the 16th century, has neither become standard English nor vanished
nonstandard language particular to a time and often to a specific locale; acceptable in everyday speech, slang should be avoided in formal contexts and, with few exceptions, in writing Ex : Someone ripped off Ken's new Adidas
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"
Marked forms of casual language of a group, often temporary in duration of use, because group changes slang terms when other groups start to use them
Low, vulgar, unauthorized language; a popular but unauthorized word, phrase, or mode of expression; also, the jargon of some particular calling or class in society; low popular cant; as, the slang of the theater, of college, of sailors, etc