Green’s Dictionary of Slang

airhole v.

(US prison) to stab (to death).

[US]T. Fontana ‘The Routine’Oz ser. 1 ep. 1 [TV script] I want him airholed. And I’m willing to pay .
[UK] T. Fontana and S. Whitesell ‘Famous Last Words’ Oz ser. 4 ep. 16 [TV script] I need you to perform a task. Airhole Morales.