Definition of aussies:
(n) :
(colloquial) An Australian.
(adj) :
(chiefly Australia, New Zealand, British, South Africa, colloquial) Australian.
(n) :
(slang, finance) Australian dollar (see also; Aussie dollar).
(n) :
(colloquial) An Australian Shepherd dog.
(n) :
(colloquial) Australia (now uncommon except in sporting chants and in New Zealand).