The Simpson predicting the future isn’t weird. Its a long running show, things are bound to happen. A country changing to fit the Simpsons? That’s new.
The term originates from a twenty year old Simpsons joke about plumbing, and according to Change.com, is entirely based around plumbing problems in the land down under. Whether proponents of the Dollarydoo actually expect economic growth from Simpsons fans (stranger things have happened) is in the air. It is reminiscent of the Jedi movement , which may have been a prank, but went just far enough to be serious.