Green’s Dictionary of Slang

(Aus.) a bush cook.

1945		Baker Aus. Lang. 79: Outback cooks have been known by many names [...] bab, babbler, babbler’s offsider, babblins, baitlayer, doctor, blacksmith, poisoner and crippen.
1964		W.F. Wannan Fair Go, Spinner 126: ‘Crippen’, ‘poisoner’, ‘bait-layer’, are other terms for a bush cook.
1974		W.F. Wannan Book of Aus. Yarns 372: A bush cook was often called a ‘crippen’ after the notorious poisoner.