Jumbuck is an Australian term for sheep, featured in Banjo Paterson`s poem `Waltzing Matilda.` The word may come from a Gamilaraay word, dhimba, of unknown meaning. It is also the name of a car and mobile chatroom community. A different etymology was offered by Edward Morris in 1898: `Jumbuck is aboriginal pigeon-English for sheep. Often used ... Found on http://en.wikipedia.org/wiki/Jumbuck