The cheesebar is the top bar across the top of a hockey net (usually refered to as a crossbar). If your a
hockey player and you don't go cheesebar down then there really isn't a reason to score, you
might as well of just stayed home. Cheesebar and in or nothing.
Going Cheesebar is also one of
the three ways to score on pond hockey (or backyard rink hockey), or when the goalie is an asshole and doesn't show up, forcing people to go posts.