The term affectionately used by residents of the city of Perth in Western Australia, to refer to the area in the south-west of the state underneath Perth.
In general it can refer to the whole area south of Perth and west of Albany, but usually only means the Cape Naturaliste-Cape Leeuwin region, in particular the towns of Busselton, Dunsborough, and Margaret River.
Person 1: "You comin' to my party on Saturday?"
Person 2: "Nah sorry dude, I'm goin' down south this weekend"
October 25, 2010