Butt-ending occurs in hockey when a player uses the shaft of a stick, which is located above the upper hand, to check an opponent in any fashion.
It can also occur when a player jabs or attempts to jab an opponent with the shaft of the stick. An attempted butt end occurs when the action of butt-ending is made regardless of whether contact is made with the opponent or not.
Butt-ending is considered to be a major penalty that results in spending 5 minutes in the penalty box. When butt-ending occurs or is attempted, a game misconduct penalty is also considered as a sanction given that the action most likely intentional. A match penalty may also be enforced if it is determined that the butt-ending was deliberately intended to cause harm.