IPA: /ˈkɒkniːɪzəm/
KK: /kɑkˈniːɪzəm/
The features, speech, or behaviors typical of a Cockney person, often associated with working-class Londoners.
His use of rhyming slang is a clear example of cockneyism.
Cockneyism → The word 'cockney' originates from the Middle English 'cockeney', which is believed to derive from 'cock' (meaning a small or young rooster) and 'ey' (meaning island or water). 'Cockneyism' refers to the distinctive dialect and cultural traits associated with the Cockney people of East London, particularly their unique speech patterns and expressions.
Think of the word 'cockney' as representing a specific cultural and linguistic identity from East London, and 'cockneyism' as the traits or expressions that define that identity.