Has an AFL game ever ended 155-50?
Exactly once. On May 16, 2015, Hawthorn beat Melbourne 155-50, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 155-50 in league history.
That makes 155-50 the 3883rd most common final score out of 6,649 that have ever occurred in AFL. One point away, 156-50 has happened 2 times and 155-51 has happened 2 times.