beyond the black stump
verb
°extremely remote, outside the populated area, in the middle of nowhere. Typically used in Australia to refer to Outback areas.
"2004: “Just don't go gettin' serious,” Frank warned. “We don't want any trouble. We're gonna be beyond the black stump out there, not at the bloody Lennox Hotel.” — Leon F. Williams, Rubies of Mogok (Trafford 2004, p. 104)"
synonyms: back o' bourke, back of beyond, woop woop