British slang

British slang is English language slang used and originating in the United Kingdom and also used to a limited extent in Anglophone countries such as the Republic of Ireland, South Africa, the United States, Australia, Canada, and New Zealand, especially by British expats. Slang is informal language sometimes peculiar to a particular social class or group and its use in Britain dates back to before the 16th century. The language of slang, in common with the English language, is changing all the time; new words and phrases are being added and some are used so frequently by so many, they almost become mainstream.

While some slang words and phrases are used throughout all of Britain (e.g., knackered, meaning "exhausted"), others are restricted to smaller regions, even to small geographical groups. The nations of the United Kingdom, which are England, Scotland, Wales and Northern Ireland all have their own slang words, as does London. London slang has many varieties, the best known of which is rhyming slang. The overseas nations of Britain also use this slang to a certain extent, but also incorporate their own slang words to reflect their different cultures. Not only is the slang used by British expats, but some of these terms are incorporated into other countries daily slang, such as in Canada and Ireland.

British slang has been the subject of many books including a seven volume dictionary, published in 1889. Lexicographer Eric Partridge published several works about British slang, most notably Dictionary of Slang and Unconventional English, revised and edited by Paul Beale.

...
Wikipedia