Definition of Collar

Usually a one-piece cue freely available for use by patrons in bars and pool halls.

Used in snooker in reference to the position of the cue ball. It is above the object ball if it is off-straight on the baulk cushion side of the imaginary line for a straight pot (e.g. "he'll want to finish above the blue in order to go into the pink and reds"). It is also common to use the term high instead.

Any shot where the cue ball is intentionally jumped into the air to clear an obstacle

In snooker, a pot into any of the corner pockets where the cue ball had started in the opposite lengthwise half of the table. In other words, a pot in which the cue ball or object ball crosses an imaginary line joining the middle pockets.

When complete focus allows you to execute quality billiards play with simplicity and seeming ease.

This is a shot that shows great control and positioning in where the cue will be when all the balls stop rolling.

Side spin on a cue ball on the opposite side of the direction of the cut angle to be played (right-hand english when cutting an object ball to the left, and vice versa). In addition to affecting cue ball position, outside english can be used to decrease throw.

Also split shot. In pool, a type of shot in which two object balls are initially contacted by the cue ball simultaneously or so close to simultaneously as for the difference to be indistinguishable to the eye. In most sets of rules it is a foul if the split is one in which one of the object balls is a (or the only) legal target (ball-on) and the other is not; however, such a split is commonly considered a legal shot in informal bar pool in many areas if it is called as a split and does appear to strike the balls simultaneously).

Actual wire or string with multiple beads strung (like an abacus) used for keeping score. Points "on the wire" are a type of handicap used, where a weaker player will be given a certain number of points before the start of the game.

Accidentally causing the cue ball or any object ball to leave the table. It is normally a foul.

Any one of numerous acts which unethical players employ to rattle or upset their opponent. Taking, making noise, and chalking your cue while your opponent is shooting are all considered sharking tactics.

British term referring to the base or metaphorical "feet" of a ball that rattles in the jaws of a pocket before eventually dropping. Usually said of an object ball for which the intention was to pot it.

This is another name for One Pocket pool.

In team match play when playing one-on-one matches, if one team is short a player, a player on that team is called back to play a second match.
For example: Team A has 6 players, Team B has 4 players. There will be five individual matches played. For the fifth match Team A can pick a player from Team B to play a second match against their fifth match player.

This is an imaginary line that separates the halves of the table by crossing at the middle of the side of pockets.

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 shot on the cue ball that will push through to a frozen ball on the cue ball. If the contact is made on the object ball while the cue stick is still contacting, essentially pushing the second ball, then it is usually considered a foul.

This term refers to a foul in snooker golf.

To win an inning that counters a good game your opponent just won.
The inning win that counters a good game your opponent just won.

A well calculated successful slop shot that is usually hit a little harder than it should be and results in a pocketed ball or two without any fouls.

This is a shot that attempts to move a number of balls onto your side of the table in a kind of herding attempt.

Area on the corner of a carom table, which is defined by a line between the second diamond on the side rail and the first diamond on the end rail, where only three successive points are allowed before the object ball must be cleared out of the area.

To move a ball (usually deliberately) from a safe position, e.g. close to the middle of a cushion or in a cluster, so that it becomes pottable.