bunyip aristocracy 

"Bunyip aristocracy" is an insult used to refer to those Australians who consider themselves to be aristocrats. See Wikipedia entry for more information.

"Given his predilection for the bunyip aristocracy, it's surprising that Big Jim Byrnes's education does not seem to have extended to the age-old adage 'people in glass houses shouldn't throw stones'."
Kate Askew - Sydney Morning Herald, October 4, 2003

bunyip aristocracy by Judo Dave September 9, 2006