Cockney Rhyming Slang - Widow Twankey

Widow Twankey (pictured as played by Eric Potts at the Oldham Coliseum theatre) is a character in the pantomime version of Aladdin, she is Aladdin's mum.

In the world of rhyming slang it is either a handkerchief (hankie) or an American (Yankee). For the latter, the Cockney's don't seem to mind if the American concerned is from the north or south!

I can't say it's a common expression in the slang world. For a Cockney rhyming slang for American, the one I have heard more often is 'septic' for 'septic tank' = yank.