The term Cockney has both geographical and linguistic associations. Geographically and culturally, it often refers to working class Londoners, particularly those in the East End. Linguistically, it refers to the form of English spoken by this group. The earliest recorded use of the term is 1362.In the Reeve's Tale by Geoffrey Chaucer (circa 1386) it appears as "cokenay", and the meaning is "a child tenderly brought up, an effeminate fellow, a milksop". By 1521 it was in use by country people as a derogatory reference for the effeminate town-dwellers. The term could also be used for a young male prostitute; in this the progression exactly mirrors that of punk and gunsel in America.
Cockney speakers have a distinctive accent and dialect, and frequently use rhyming slang. The Survey of English Dialects took a recording from a long-time resident of Hackney and the BBC made another recording in 1999 which showed how the accent had changed.Studies have indicated that the heavy use of South East English accents on television and radio may be the cause of the spread of Cockney English since the 1960s