코크니 라임 슬랭(Cockney rhyming slang)에서 유래한 피아노를 일컫는 속어.
A slang term for a piano, originating from Cockney rhyming slang where the name rhymes with the colloquial pronunciation 'pianner'.
예문:
"He sat down at the joanna and started playing a lively pub song."
"Can you play a tune on the joanna for us?"