Has an AFL game ever ended 180-80?
Exactly once. On June 15, 2007, Hawthorn beat Carlton 180-80, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 180-80 in league history.
That makes 180-80 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 181-80 has happened never and 180-81 has happened never.