Similarly 'fossick', which now means 'to rummage or search around or about', has its origin on the goldfields. The word fossick comes from British dialect where it meant 'to obtain by asking, to ferret out'.
On the goldfields it had two meanings: ... 'to steal gold from other diggers, especially from an unattended claim' ...The transferred usage was often ironic: 'If one in want of a dinner called at his neighbour's tent at mutton time he would be a fossicker'. But it is the first meaning which has survived into contemporary Australian English.
Australian National Dictionary Centre, Gold
Cheers
Doug
On the goldfields it had two meanings: ... 'to steal gold from other diggers, especially from an unattended claim' ...The transferred usage was often ironic: 'If one in want of a dinner called at his neighbour's tent at mutton time he would be a fossicker'. But it is the first meaning which has survived into contemporary Australian English.
Australian National Dictionary Centre, Gold
Cheers
Doug