swagman
noun [ C ] Australian English uk/ˈswæɡ.mæn/ us/ˈswæɡ.mæn/ swagmen
背着行囊到处流浪的人
someone who does not have a permanent home or job and who moves from one place to another or from one job to another
They were afraid of wandering swagmen. 他们很害怕背包流浪汉。