Has an AFL game ever ended 108-92?
It has. 108-92 has been a AFL final 2 times in 16,622 games. The first was Carlton beat Richmond on June 3, 1944; the latest was Carlton beat Fitzroy on April 11, 1981.
That makes 108-92 the 2421st most common final score out of 6,607 that have ever occurred in AFL. One point away, 109-92 has happened 2 times and 108-93 has happened 6 times. At one point the score disappeared for 37 years, between 1944 and 1981.