I stumbled across an old Australian song by Men at Work. Whoever thought that English was the same the world over, knew not what they were saying.

Traveling in a fried-out combie

This is not an over-cooked chimichanga, but something like a VW camper van, the sort of vehicle that you would imagine if you listened to Alice's Restaurant, assuming your idea of fun is Arlo Guthrie, that is.

On a hippie trail, head full of zombie

This is a powerful sedative which may not actually exist in reality - yet. It seems to be more like a mythical drug that scientists have been researching for years. it's main property being to turn humans into zombies. Maybe just turn on Men at Work songs and listen to them backwards while standing on your head, that should do something towards achieving living dead status.

I said, "Do you speak-a my language?"
He just smiled and gave me a vegemite sandwich

Vegemite is vegetable extract that spoils any piece of processed white bread in a second. It is even more disgusting than marmite, which is a beef extract given to British babies before they are old enough to realise that it too tastes like shite.

I come from a land down under
Where beer does flow and men chunder

This is a charming onomatapeic word that means to throw up, puke your ring, spew. A common pastime in any local hostelry, this action has been perfected in Bolemia-ville, south of Alice Springs.

If you want to perfect your Australian English, mates, check out the full and entertaining lyrics to Land Down Under by Men at Work