Australian rhyming slang
noun
—
The set of slang expressions used by Australians in which a word or phrase is replaced by a rhyming word or phrase, this word or phrase then often being abbreviated to its first syllable or syllables, or its first word. Examples include bag of fruit, Joe Blake, and Noah's ark. Much Australian rhyming slang overlaps with the rhyming slang of New Zealand, the UK, and the US.