Macquarie Dictionary - adjective /doʊp/ (say dohp) 9. (Colloquial) excellent: a dope book; so dope!
Words are the tits, really. Australian English especially so, as the folks at Macquarie Dictionary will tell you. And now their editor Susan Butler's got a blog, and it is awesome. Ever wanted to know the difference between a taboo and a derogatory word? Suze has you covered, with colourful examples. Wanna know the history of Aus usage of youse? Ms Butler has the answers.
Not only that, but you also get to vote for the Word of the Year 2013, which I am disproportionately excited about. The 'Colloquial' category is amazeballs (–adjective 2. very astonishing: an amazeballs day out).
Doesn't get better than that.