Doing something in soccer that impresses/angers the designated book keeper. This doesn't necessarily have to happen in the game, and you can gain or loose cool points at the whim of the book keeper. At the end of the season, whoever has the most cool points on the team is the coolest kid on the jv soccer team.
Sean, you just got 100 jv cool points for almost kicking the other jv goalie in the face. Your one cool dude.