100% sure of it. Without a doubt. This slang is mostly used in Australia.

Predoninantly Aussie slang, used to enforce the certainty of ones opinion.
Often used to enchance harsh assessments of the character of others.

The word used to describe the kind of scene of total and utter desolation, desomation and isolation. Usually uttered to either oneself or to a friend upon the arrival to a party that noone went to/everyone has already been to a totaled the place.

Taken from the British TV drama Deadset, in which the cast find themselves alone in the middle of a post-apocolyptic wasteland dressed in drag and not nearly crunk enough.