2.1 Definition of Slang
According to the explanation of Oxford Advanced Learner’s English-Chinese Dictionary, slang means very informal words, phrases commonly used in speech, especially between people from the same social group or who work together, and slang is not considered suitable for formal contexts and often not in use for long. (Chomsky, 1999)
From the perspective of sociolinguistics, slang is a kind of jargon marked by its rejection of formal rules, its comparative freshness and its common ephemerality, and its marked use to claim solidarity. The importance of language in establishing social identity is shown in the case of slang. Slang is primary speech claiming group membership, and it rejects the power dimensions associated with formal language. Often, slang is associated with peer group and gang speech, intentionally used to obtain some degree of secrecy. It may be compared to the secret languages found in some tribes.
Slang is highly informal and is often used in colloquial speech. It is a part of a language that is usually outside of conventional or standard usage and that may consist of both newly coined words and phrases and of new or extended meanings attached to established terms. The term is often applied to the words and phrases semantically either entirely peculiar or used in a special sense by the class or social group. (Chen Linhua, 1999)
Slang is language that is different from the kind of speech that we are taught in school. We cannot learn slang words in formal English classes, and teachers often tell