Let me start by clarifying that Ole Miss’ dunking celebration was not specific to the Kentucky matchup. It’s something the Rebels do against every opponent, both home and away, for every touchdown and turnover. That’s become their thing — for whatever reason. “A lot of people have a chain or a belt, and we’ve done things over the years,” Ole Miss coach Lane Kiffin said this past week. “So it’s just, ‘What could we do to be really creative?’ And that’s to dunk.” The idea was introduced last season, bringing a backyard hoop to the sideline and taping the opponent’s logo on the backboard. Players…