A sheep. The term is a corruption of ‘jump up’ (Macquarie Dictionary, 3rd rev. ed. Sydney: Macquarie, 2001). Cited on the National Library of Australia website, http://www.nla.gov.au/epubs/waltzingmatilda
Down came a jumbuck to drink at the billabong. Up jumped the swagman and grabbed him with glee... --A.B. Paterson, "Waltzing Matilda"
A sheep. The term is a corruption of ‘jump up’ (Macquarie Dictionary, 3rd rev. ed. Sydney: Macquarie, 2001). Cited on the National Library of Australia website, http://www.nla.gov.au/epubs/waltzingmatilda
Down came a jumbuck to drink at the billabong.
Up jumped the swagman and grabbed him with glee...
--A.B. Paterson, "Waltzing Matilda"