 Okay, it's when you send the puck down the wall or through the ice too far. I believe the rule is you can't send it into the opposing end from beyond the red line of the checkered line, right? If you're beyond the half line, if you're on your side of the half line, this is the high school rule anyway. If you're on your side of the half line, you send the puck into the offensive zone and it goes all the way past the goal line extended and you were on the other side of the red line,