A quartz tipped tool or spear used by the aboriginal noongar people of South Western Australia, namely Perth region, to either hunt kangaroos or other aboriginals. The word stems from the Gidgegannup township north east of Perth, which is rife with abo crime and quartz mining.
Jim: "Where'd me fuckin 6 packa emu export go cunt?"
Joe: "Oi I reckon Davo took it, fuckin druggo"
Jim: "Get the fuckin Gidgees, we're finding that dickhead"