Green’s Dictionary of Slang

1. (N.Z. prison) a cell block, esp. that housing tougher prisoners.

2001

D. Looser Boobslang [U. Canterbury D.Phil. thesis] 78/1: ghetto n. 1 a cell block [...] the Bronx senses 2.

2. (N.Z. prison) the outside world.

2001

D. Looser Boobslang [U. Canterbury D.Phil. thesis] 78/1: ghetto n. 2 = the Bronx sense [...] 3.