Green’s Dictionary of Slang

Jimmy Nail adj.

[rhy. sl.; ult. UK actor and singer Jimmy Nail (b.1954)]

stale.

P. Davies ‘Can you follow middle-class rhyming slang?’ at Network54 🌐 They’ve eaten a Giorgio Armani (it was a bit Jimmy Nail) for Michael Winner.
[UK]B. Kirkpatrick Wicked Cockney Rhy. Sl.