Green’s Dictionary of Slang

1. a bank.

1972		Dodson & Saczek Dict. of Cockney Rhy. Sl.
1998		R. Puxley Fresh Rabbit.
2002		B. Kirkpatrick Wicked Cockney Rhy. Sl.

2. a prison (also = tank n.² (1)) .

1984

(con. WW2) T. Jones Heart of Oak [ebook] I’d had a knee trembler with a bird outside the Heffelent and got a nap hand ... and I went adrift ‘cos I didn’t want to be in the rattle for the next bleeding ten years.