The Word Map is mapping Australian regionalisms - words, phrases or expressions used by particular language groups. The project began in 2005 so I'm not sure how active it is now.
A friend emailed me about sanger.
Here is what a search reveals:
a sandwich: I had a sanger for lunch.
Contributor's comments: This word is hardly restricted to the region shown thus far - it is well known in Melbourne and Perth (where I have lived).
Contributor's comments: I agree that this term is not restricted to Melbourne and Perth. It is used here in Sydney but usually only in a very casual or slang frame of reference.
Contributor's comments: Sanger is commonly used throughout Australia by members of the Defence Forces.
And avagooday! (you won't find that one in the word map - just say it slowly!)