rhyming slangrhy·ming slang
a form of language play, esp. as used by cockneys, in which a phrase is substituted for a single word with which the last word of the phrase rhymes (Ex.: trouble and strife used for wife, apples and pears for stairs)
Slang in which a word is replaced by a word or phrase that rhymes with it, as mate by China plate, often with the rhyming word being dropped from the phrase.