This is a slang term for Australianism which is a term for Australian slang.

Some of these aussieisms are made internationally famous by Australian celebrities and the rest are words used in other countries but have a different meaning in Australia.
Nigel no friends, Bush pig,G'day, Drongo, Strewth, Onya, Crikey, Bugger, Mexican are all Aussieisms.
by Woohzal March 11, 2008
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