Wiktionary
aussie rules
n. (context informal English) Australian rules football, the sport.
Usage examples of "aussie rules".
She could hear two or three kids arguing loudly in the background, plus a loud play-by-play of what sounded like Aussie Rules.
They were tall and lean -- as tall as basketball players, probably -- but much stronger-looking, with an all round grace that reminded her of decathletes, or maybe Aussie Rules footballers (a baffling, sexy sport she'd tried to follow as a student, long ago).