When someone at a hockey match tries to throw up an aerial (a high ball in the air) and then completely flops it by throwing it either in completely the wrong direction or behind them, possibly hitting a spectator. Is a combination of the words missed and aerial. Can also be called a Faerial (but doesn't quite have the same ring to it).
Ball flies past spectators and smashes window;
spectator 1: wow that was a terrible aerial
spectator 2: Great Maerial!