Rhyming slang in London is continually evolving .
In Australia and South Africa , the colloquial term `` China '' is derived from `` mate '' rhyming with `` China plate '' ( the identical form , heard in expressions like `` me old China '' is also a long-established Cockney idiom ) .Rhyming slang is continually evolving , and new phrases are introduced all the time .
Rhyming slang