Aussie - cленговое слово, означающее "австралийский", также применяется и к австралийцам. Из Википедии: "In Australia, New Zealand, United Kingdom, Canada and Ireland, the word is pronounced /ˈɒzi/ oz-ee (Australian English [ˈɔzi]), with a /z/ sound; however, in the United States, it is most often pronounced /ˈɔːsi/ aw-see with an /s/ sound. Pronouncing the word with an /s/ in place of the /z/ is considered by Australians to be a canonically American error—similar to pronouncing the last syllables of Melbourne and Brisbane as "born" and "bane". Я типичный американец

Кстати, новозеландцев называют Киви (Kiwi).