Green’s Dictionary of Slang

spanker n.4

[all are seen as ‘brand spanking new’; though in sense 1 note ? link to wanker n. (2)]

(N.Z. prison) a novice.

Show quotations
[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 173/2: spanker n. 1 (also spankie) a prison officer recently completed his training 2 an inmate new to a prison or (formerly) a borstal.