Great quiz, I had fun doing that. Just a small points of correction. Tucker is food, not a grocery bag. The song refers to the swaggies 'tucker bag' which is the bag where he keeps his food. A billy is also the can in which you boil water, the term is equivalent to teapot.
Wow, if you ever want this quiz to be featured (and IMO, it should be) you really need to make allowances for various (and often correct) answers. A billabong could be a "pool of deep water". A squatter could be a "land owner". Split up "ghost" and "billabong" into 2 separate fill-in-the-blanks. A swagman could be a whole host of different answers. Coolibah should have a few variations that are okay. (e.g. koolibah)
You've got something good here, but a.) do some more research on what answers should be acceptable, and b.) add some leeway in what answers are considered correct.
You've got something good here, but a.) do some more research on what answers should be acceptable, and b.) add some leeway in what answers are considered correct.