1. (Aus./UK prison) a principal officer who ‘drives’ his subordinates [screw n.1 (2c)].
|(con. 1920s) Burglar to the Nobility 84: In rushes the screwdriver — the chief screw — and yells us all uop to our feet.|
|Aus. Prison Sl. Gloss. [Internet] Screwdriver. Chief prison officer or superintendent.|
2. the penis [screw n.1 (1b) + pun].
|Maledicta IV:2 (Winter) 194: The engineer [is represented] with his derrick, screwdriver, rogering iron, piston and pumphandle.|