What is Cockney ?
Cockney is (adj) typical of the East End of London or the people who live there He speaks with a real cockney accent. (noun) 1. a person from the East End of London He was born and brought up as a Cockney. 2. a form of English spoken in the East End of London ‘Let’s have a butcher’s’ is cockney for ‘let’s have a look’. She spoke in broad cockney. Compare rhyming slang
source: Easier English, Student Dictionary Upper Intermediate Level