Definition of cannon

This describes a shot in snooker where the cue contacts more than one object ball.

24 Random Essential Billiards Terms

In snooker, the highest-value baulk colour, worth 4 points.
Named after Chicagoan J. E. Parker, it is a 3½ × 7 inch box drawn on a balkline table from the termination of a balkline with the cushion, thus defining a restricted space in which only a set number of points may be scored before one ball must be driven from the area. Now supplanted by anchor spaces, it was developed to curtail the effectiveness of the anchor nurse, which in turn had been invented to exploit a loophole in balkline rules: so long as both object balls straddled a balkline, there was no restriction on counts, as each ball lay in a separate balk space.
A Baulk line is line drawn across the table 29 inches from the bottom cushion and parallel to that cushion.
An imaginary line running horizontally across a billiards table from the second diamond (from the foot end of the table) on one long rail to the corresponding second diamond on the other long rail. The foot string intersects the long string at the foot spot. It is rarely drawn on the table.
A low hit on the cue ball (but not as low as normal draw), often used to change the cue ball's angle of deflection off the object ball.
To sink a ball into a pocket.
In snooker, where the cue ball is resting in contact with another ball. If this ball is a ball that may legally be hit, then it is allowable to simply hit away from it and it counts as having hit it in the shot. If the ball moves, then a push shot must have occurred, in which case it is a foul.
The ornamentation on a cue is often made by inlaying exotic materials into the wood of the butt portion of the cue. Inlays of ebony and ivory are quite common. The value of a cue is often based on the number inlays.
This is to intentionally foul by slightly moving the ball, or playing another type of illegally defensive shot in a game where the ball is just turned over to the other player. Like in one pocket, you still take the foul, but can leave the other player with a challenging shot.
A deliberate foul that leaves the balls in a safe position, reducing the risk of giving a frame-winning chance to the opponent. The miss rule in snooker was implemented primarily to discourage the professional fouls.
Same as center spot.
Sandbagging, in any handicapped sport, is the unethical practice of deliberately playing below your ability in order to alter your handicap so it does not reflect your true ability.
The heavy, finely milled rock (slate) that forms the bed of the table, beneath the cloth. Major slate suppliers for the billiards industry are Italy, Brazil and China. Some cheaper tables, and novelty tables designed for outdoor use, do not use genuine slate beds, but artificial materials such as Slatrol.
This is a toned down masse shot. The cue is elevated a little and will curve a little in the direction the spin is applied. This is used to sneak around difficult shots.
Sometimes interchangeable with scratch, though the latter is often used only to refer to the foul of pocketing the cue ball. A violation of a particular game's rules for which a set penalty is imposed.
All-Africa Pool Association. The AAPA is a member of the WPA.
Cut Throat is a game of pocket billiards created to support three or five players. Balls are assigned to each player, and the purpose is to sink all the opponent's balls first to eliminate the other players.
Either of the two shorter rails on a standard pool, billiards or snooker table. Contrast side rail/long rail.
The rules played in a particular venue not necessarily in comportment with official rules, or with common local bar pool custom.
Used with an amount to signify money added to a tournament prize fund in addition to the amount accumulated from entry fees (e.g. "$500 added").
More commonly known as "straight pool", it was for many years the most popular game in pool and the game on which all World Championships were based.
14.1 is a call-shot game played with all 15 numbered balls and cue ball. Every ball pocketed counts as one point and a game is played to a agreed up score, generally 50, 100, or 150 points.
Traditional straight pool matches are played to 150 points.14.1 is also called "continuous pool" because, after the opening break, play continues until a player reaches the winning score. When only one numbered ball is left on the table, the remaining 14 are racked (with the apex ball missing), and play continues.
Same as duck. Derives from an easily shot ball "hanging" in the pocket.
Confederation Panamerica of Billiards
This is when it is necessary to change a set handicap after play indicates it favors one player more than the other.