jillaroo
A female jackaroo, a woman who does the job of a jackaroo.
She left school at thirteen-years-of-age to work with her father as a jillaroo: building fences, mustering cattle, and working at various jobs on stations throughout Queensland and New South Wales.
2001, Vivienne Cleven, Bitin′ Back, author biography, title page,
Where it comes from
Blend of Jill (a female given name, a colloquial counterpart to Jack) + jackaroo.
Adapted from the Wiktionary entry jillaroo (CC BY-SA 4.0).