Maybe you need to be an Aussie to understand...

From somewhere in cyberspace...

Billabonk: to make passionate love beside a waterhole
Bludgie: a partner who doesn't work, but is kept as a pet
Dodgeridoo: a fake indigenous artefact
Fair drinkum: good-quality Aussie wine
Flatypus: a cat that has been run over by a vehicle
Mateshit: all your flat mate's belongings, lying strewn around the floor
Shagman: an unemployed male, roaming the Australian bush in search of sexual activity
Yabble: the unintelligible language of Australian freshwater crustaceans
Bushwanker: a pretentious drongo, who reckons he's above average when it comes to handling himself in the scrub
Crackie-daks: 'hipster' tracksuit pants.

And for the Kiwis among us:
Shornbag: a particularly attractive naked sheep (apologies to Kath & Kim)