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.
Any form of 'activism' that you do while sitting on your ass. An attempt to feel like you're making a difference, but without making the effort to put clothes on and get off the couch.
Example: E-mailing a show's sponsors to demand that they stop advertising on that show.
I went to a town hall meeting and argued against a new policy; it was more meaningful than the asstivism that people on Facebook do.