digger Share definition Flag Affectionate term for the Australian combat soldier. The term originated during the Gallipoli Penisula campaign, where digging protective trenches was a comonplace activity. Those Aussie diggers are tough mofos in combat. digger by DJ Asman April 21, 2006 0 0 Get merch Get the digger mug. Buy Now — $32.95 See more merch