Green’s Dictionary of Slang

joe gurr n.

also joe, joe ghirr
[rhy. sl. = stir n.1 (1); ult. Joe Gurr, Amelia Earhart’s radio consultant on her 1937 Round-the-World flight]

prison.

[UK]F.D. Sharpe Sharpe of the Flying Squad 331: joe gurr: Prison.
[UK]J. Franklyn Dict. of Rhy. Sl.
[UK]Dodson & Saczek Dict. of Cockney Rhy. Sl.
[UK](con. 1900–30) A. Harding in Samuel East End Und. 282: Joe – Prison. We say ‘Done any Joe?’ The police use the same word.
[UK]J. Morton Lowspeak 82: Joe ghirr – prison.
[UK]R. Puxley Cockney Rabbit.