Wallaroo is any of three closely related species of moderately large macropod, intermediate in size between the kangaroos and the wallabies, the  word "wallaroo" is from which Australian Aboriginal language of the Yuin–Kuric group that is spoken in the region of Sydney, New South Wales, "walaru"?
Dharug language The Sydney language, also referred to as Darug or Iyora (Eora), is an Australian Aboriginal language of the Yuin–Kuric group that is spoken in the region of Sydney, New South Wales. It is the traditional language of the Darug and Eora peoples.
Wirangu language The Wirangu language is a moribund Australian Aboriginal language traditionally spoken by the Wirangu people, living on the west coast of South Australia across a region encompassing modern Ceduna and Streaky Bay, stretching west approximately to the head of the Great Australian Bight and east to Lake Gairdner.