Definition of lock up

The act of playing a devastating safety which leaves the opponent in a situation where it is very difficult or near impossible to make a legal hit on an object ball

24 Random Essential Billiards Terms

A shot that only a novice or fool would take. Usually because it is a guaranteed scratch or other foul, or because it has a low percentage of being pocketed and is likely to leave the opponent in good position.
This is a bank in one pocket pool that is sitting at an angle that makes it unsafe to play.
A players skill level, ball advantage or match advantage when using a handicapping system.
A tournament format in which a player is out of the tournament after a single match loss.
A British term (especially in snooker) for the splitting of a group of balls when another ball is sent into them, typically with the intent of deliberately moving them with the cue ball to develop them.
In blackball, a situation where the player cannot see any of the balls she/he wants to hit due to obstruction by other balls or the knuckle of a pocket. The player must call "total snooker" to the referee, which allows a dispensation to the player from having to hit a cushion after contacting the object ball, which is otherwise a foul.
Any ball that may be legally struck by the cue ball.
The triangular device, generally plastic, used to group the balls in a pyramid form prior to the beginning of a game.
When two objects balls are lined up so that you aim to pocket the nearest object ball, the second object ball will pocket. "That was an easy combination shot, the six ball was wired to the four ball". Also wired combination/combo, wired kiss.
The ball required to guarantee victory in a match. Sometimes used figuratively to mean the last difficult ball required (chiefly British and usually used in multi-frame matches, particularly snooker).
This refers to the cluster of balls remaining in a similar position to where they were within the break
This is when a ball is spotted because of a foul or a handicap.
A pejorative term for an improper rack in which the balls are not properly in contact with their neighbors, often resulting in a poor spread on the break.
To indicate where something is to be done. To "mark the pocket" means to indicate which pocket you intend to sink an object ball.
Any shot in which the cue ball or an object ball has to squeeze by (just miss with almost no margin for error) another ball or balls in order to reach its intended target.
This is the white ball in carom games which is separated from the clear ball by a marking (usually a dot or spot).
This is a type of shot where the cue ball goes off the rail before it heads to contact the object ball, thus giving the cue better position in some shots.
When a player is on the receiving end of a devastating safety where it is very difficult or near impossible to make a legal hit on an object ball.
Also known as a "Dirty Defense" or "Dirty Foul". To intentionally miss a shot (that results in a foul) in order to create a position for the cue ball that makes it hard for the other player to execute their shot. Not to be confused with a "Safety", since a safety is a legal hit.
In the UK, one of the two pockets one either side of a pool, snooker or English billiards table halfway up the long rails.
When the cue ball is tucked behind the corner of a pocket, therefore not allowing a direct shot at the object ball.
The World Professional Billiards and Snooker Association, founded in 1968 and based in Bristol, England, United Kingdom is the governing body of professional snooker and English billiards. It sets the sports' rules, organises tournaments and the pro-am and pro tours, and engages in various promotional activities.
Oceania Pocket Billiard Association.
One of two sharp, jutting curves of the cushions either side of a pocket at the points where cushion and pocket meet, forming the jaws of the pockets. Also known as a point, a tittie or a horn.