Has an AFL game ever ended 184-91?
Exactly once. On August 24, 1985, Essendon beat St Kilda 184-91, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 184-91 in league history.
That makes 184-91 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 185-91 has happened never and 184-92 has happened never.