I got Spectacularly South-East in the quiz compared to England (and let's face it, you don't
get much further South-East unless you're a Kiwi), but I got
rather odd results when I did an on-line quiz relating my English to the USA. I just seem to be vaguely "coastal urban"?
We shake sticks at things in the UK too.
Many, probably most, "Australianisms" originated in the UK, I think. Even so Australian expression as "fair dinkum" originated, I believe, in an English dialect. To describe a person/action as "not fair dinkum" is a fairly serious insult to, or criticism of, their/its honesty. Don't throw it in someones face here unless you
intend to provoke a confrontation.
A few Australian words, like "
cooee" (a bushman's shout; a moderate distance, usually in the context "within cooee of <object>"), "yakka" (work, especially in the form "hard yakka"), "billabong" (pond or pool, often transitory following heavy rain, river-flooding etc.), "gibber" (a boulder or stone) etc. are drawn from indigenous Australian languages. So, of course, are the names of many places (Woolongong, Oodnadatta), animals (kangaroo, koala), and cultural artefacts (boomerang, digeridoo).