rhyming slang

1.a form of slang that replaces a word with an expression that rhymes with the word but has no meaningful connection with it, used especially in Cockney

2.a way of talking in which you replace the normal word for something with a word or phrase that rhymes with it. An example is ‘dog and bone’ instead of ‘phone’. Rhyming slang is used especially by cockneyspeople from East London.