Yeah, I had to get a German to lookup what "ᵊ" really means in the International Phonetic Alphabet. It was only then I found out that of the two listed pronunciations on Wikipedia[1], the first actually is the usual Australian pronunciation that my ill-fated attempt at self-deprecating humour hinged upon.

Damn your completeness, Wikipedia.

1. /ˈkænbᵊrə/, /ˈkænbɛrə/