Definition of Gapper

Side spin on the cue ball that causes it to unnaturally roll off a cushion (contacted at an angle) against rather than with the ball's momentum and direction of travel. If angling into a cushion that is on the right, then reverse english would be right english, and vice versa. The angle of deflection will be steeper (narrower) than if no english were applied. The opposite of running english, which has effects other than simply the opposites of those of reverse english.

This is a location where a player can go inexpensively to refine their pool skills. These establishments began as horserace betting houses, and are still often filled with games involving money action. If you get thirsty, many pool halls offer cold refreshments, however, be careful you are not there just for the refreshments. In that case, you may as well be playing at a bar with a bent cue on a rain table.

A thin sheet of rigid material in the size and shape of a physical ball rack (e.g. a diamond for nine-ball), with holes drilled though it, which is used to make permanent divots in the cloth of the table, one at a time for each ball in the racking pattern, by placing a ball in one of the holes in the carefully placed template and tapping it sharply from above to create the cloth indentation. The holes are spaced slightly closer than the regulation ball width of 21/2 inch (57.15 mm) apart, so that when the balls settle partially into their divots, the outer sides of these indentations create ball-on-ball pressure, pushing the balls together tightly. The purpose of the template is to do away with using a physical rack, with racking instead being performed simply by placing the balls into position, and the divots aligning them into the tightest possible formation automatically. This prevents accidental loose racks, and also thwarts the possibility of cheating by carefully manipulating the ball positions while racking. The European Pocket Billiard Federation (EPBF, Europe's WPA affiliate organization) has adopted this racking technique for its professional Euro-Tour event series.

When a ball is given as a handicap it often must be called (generally tacit). A wild handicap means the ball can be made in any manner specifically without being called.

The pocket chosen to house the selected ball in your called shot.

Chiefly British: Short for side spin. In Canadian usage, the term is sometimes used as a verb, "to side".

In a tournament, to place high enough to receive a payout. E.g., in a tournament that pays from 1st down to 5th places, to be at least 5th place is to be in the money.

Slang for a mechanical bridge.

Chiefly American: The half of the table from which the break shot is taken. This usage is conceptually opposite that in British English, where this end of the table is called the bottom. Contrast foot. See also kitchen.

Named after their innovator, legendary cuemaker George Balabushka, Bushka rings are decorative bands of material incorporated into pool cues, commonly just above the wrap area, in the form of ebony and ivory blocks, or sometimes other materials, alternating in a checked pattern.

This is when a ball is spotted because of a foul or a handicap.

Extreme application of draw. This when the draw back of the cue ball is your first priority, and you apply extra draw to the hit of the cue ball.

Also treble. A British term for a type of bank shot in which the object ball is potted off two cushions, especially by sending it twice across the table and into a side pocket. Also called a two-cushion double.

A bridge formed by the hand where no finger loops over the shaft of the cue. Typically, the cue stick is channeled by a "v"-shaped groove formed by the thumb and the base of the index finger.

When playing 9 Ball, a dead ball is an object ball the falls into a pocket when a foul has been committed (for example, the shooter scratches or does not hit the lowest ball first). If keeping score by counting balls fallen, neither player gets the point for that ball.

Same as back spin.

This is English that turns into reverse English after contact with the object ball. This will close up the angle on a bank.

This is a type of shot that shows complete control over the object ball and the cue ball.

Australian: Defeated with all seven of one's object balls (in blackball or eight-ball) remaining on the table.

This is a special shaped leather or plastic bottle that is used on the table during play in special pocket games.

To apply chalk to the tip of your cue before a shot.

This is a timing device for monitoring and restricting shot times for a player.

Also pills, tally balls and shake balls. Small, round markers typically numbered 1 through 15 or 16, which are placed in a bottle for various random assignment purposes, such as in a tournament roster, to assign order of play in a multiplayer game, or to assign particular balls to players in games such as kelly pool.

This is a kind of cue made of four pieces of wood, the butt sleeve, the points, the handle, and the forearm, with each piece pinned, doweled, and glued together.