Cockney represents the basilectal end of the London accent and can be considered the broadest form of London local accent. It traditionally refers only to specific regions and speakers within the city. While many Londoners may speak what is referred to as "popular London" they do not necessarily speak Cockney.

How would you describe a Cockney accent?

Cockney as a dialect is most notable for its argot, or coded language, which was born out of ingenious rhyming slang. ... In this example, a word is replaced with a phrase that ends in a rhyming word, and that rhyming word is then dropped (along with, in apples and pears, the and).

Is Cockney accent posh?

RP English is said to sound posh and powerful, whereas people who speak Cockney English, the accent of working-class Londoners, often experience prejudice.