Has an AFL game ever ended 140-56?
Exactly once. On June 30, 2012, Essendon beat Footscray 140-56, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 140-56 in league history.
That makes 140-56 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 141-56 has happened never and 140-57 has happened 2 times.