HOOK
A defensive tactic in which a player hooks the mallet of an opposing player or blocks his or her swing.
THROW IN
Play begins or is resumed when the umpire throws the ball into play.
TAIL SHOT
Hitting the ball behind the horse's back end.
NEAR-SIDE
Left side of the horse, named the near-side because it is the side of the horse that riders mount up.
RIDE OFF OR BUMP
A defensive move in which a horse's shoulder is pressed into the shoulder of another player's horse, in an attempt to drive him of her off the line of the ball. Legal bumping of an opponent's horse takes place at no more than a 45-degree angle.
OFF-SIDE
The right side of the horse