Has an AFL game ever ended 90-55?
Yes. AFL has seen a final score of 90-55 3 times. It first happened on August 19, 1905, when Melbourne beat Geelong, and most recently on May 25, 2018, when Collingwood beat Footscray.
That makes 90-55 the 1534th most common final score out of 6,607 that have ever occurred in AFL. One point away, 91-55 has happened 3 times and 90-56 has happened 4 times. At one point the score disappeared for 104 years, between 1914 and 2018.