Has an AFL game ever ended 158-25?
Exactly once. On August 18, 2018, Geelong beat Fremantle 158-25, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 158-25 in league history.
That makes 158-25 the 3883rd most common final score out of 6,649 that have ever occurred in AFL. One point away, 159-25 has happened never and 158-26 has happened never.