noun a kookaburra AUSTRALIA, 1898.► sit up like Jackyto sit up straight in a perky or self-important manner. It has been suggested that this refers to sitting up straight 'as an aboriginal is supposed to do in company with whites', though it should be noted that the kookaburra habitually sits up on an exposed branch or fencetop surveying an area of ground for insect and reptile food, and impertinently ignores the frequent attacks of other birds AUSTRALIA, 1941

noun an Australian Aboriginal man AUSTRALIA, 1845