The last minute in which something can change. Used most frequently in sports.
1. Commentator: "And Man United have scored a penalty in the 90th minute to win the game!"

2. Guy #1: "Dude, where's Kyle?"
Guy #2: "He was supposed to come, but he pulled out in the 90th minute."
Guy #1: "What a tool."
by Beeth November 30, 2007
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