Sweeney Todd has always been a well-known rhyming slang expression, but it became widely known and understood by being used as the name of the TV series The Sweeney.
Sweeney Todd himself was a famous (fictional) murdering barber from the Victorian Penny Dreadfuls. He carried out his bloody trade in Fleet Street - near the East End of London.
Credit: contributed by
This slang has been rated: