a drifter or a hobo, a billabong is a water hole, a coolibah tree is a eucalyptus tree, a billy is a makeshift kettle (whew, glad that's settled), a jumbuck is a sheep, a tucker bag is a knapsack and a squatter is a wealthy landowner
A swagman is an old Australian term describing an underclass of transient temporary workers, who traveled by foot from farm to farm carrying the traditional swag. Also characteristic of swagman attire was a hat strung with corks to ward off flies.