Flashjack is an Australian informal name for the bridled nailtail wallaby — a small macropod native to central Queensland, named for the distinctive bridled markings on its face and neck.
Flashjack is an Australian informal name for the bridled nailtail wallaby — a small macropod native to central Queensland, named for the distinctive bridled markings on its face and neck. As a creature name it is primarily of ecological and zoological interest rather than slang in the conventional sense. The 'flash' element likely refers to the animal's quick movements or its distinctive markings; 'jack' is a common suffix for small male animals in Australian vernacular.
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The wildlife park had a breeding program for the flashjack, one of the rarest wallaby species in Australia.
(AU, informal) The bridled nailtail wallaby.