Definition of call (your) shot

Certain rules say you must designate your shot before taking it. Generally this is just calling the ball to be sunk in which pocket, and is not dependent on touching rails or other balls, but very well can be.

24 Random Essential Billiards Terms

In eight-ball, when all object balls are balls-on for either player.
A description of a break shot in which the rack (pack) is spread apart well. See also the open break requirement in some games' rules, including eight-ball and nine-ball.
In carom billiards, descriptive of play in which the balls are not gathered.
This is a game played with the same balls and similar scoring methods of carom, but with pockets on the table, and more scoring opportunities awarded when certain balls are sunk in combination.
0-2 Barbecue is a slang billiard term that refers to a single player loosing the first 2 matches in a double elimination tournament. This double loss results in that player being knocked out of the tournament without winning even one game.
Also known as joint caps. Plugs that screw into/onto the threads of a joint when a two-piece cue is broken down to keep foreign objects and moisture from contacting the joint mechanism.
Same as spot
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.
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.
The angle from which a ball rebounds from a rail, as measured from the perpendicular to the rail.
In certain carom billiards games, any shot in which the cue ball is sucessfully caromed off an object ball to strike another object ball (with or without contacting cushions in the interim) is a considered a billiards shot.
In the eight-ball game variant blackball, also known as eight-ball pool, a differently colored but otherwise identical replacement for the red group (i.e., what would be the solids in an American-style pool ball set).
Random method for pairing of opponents when setting up a bracket system for a tournament.
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).
Same as feather (US) or snick (UK)
A point bead on a scoring string.
Refers to a person gambling when he has no money. As in, "That jerk can't pay up, he was shooting air barrels the whole time".
Same as break.
This refers to a shot that is not banked, does not hit a rail and goes into the pocket without contacting any other balls on the table.
When the object ball lies behind another ball which makes it impossible to be struck by the cue with a direct hit.
This is the stick used to contact the cue ball in pool and billiards games. The cue stick is usually made of wood, features a special contact tip, and is usually tapered to slide through your hand. The price of these tools can range from oil change to transmission change depending on the quality of craftsmanship and design.
A term used in snooker for the potting of all the balls that are racked at the beginning of the frame in a single break (run). The minimum total clearance affords 72 points (barring multiple reds being potted on a single stroke), in the pattern of red then yellow repeatedly until all reds are potted, then all of the colour balls. The maximum break is 147 (barring a foul by the opponent immediately before the break began).
This is a tool that is used to shape a cue stick. It holds the cue in place while rotating it along a cutting edge. This tool can also be used to hold the cue in place while constructing or repairing other parts on the cue.
This term refers to a foul in snooker golf.
A player's (or doubles team's) turn at the table, usually ending with a failure to score a point or to pocket a ball, depending on the game, a foul, a safety or with a win. In some games, such as five-pins and killer, a player's inning is always limited to one shot, regardless of the intent and result of the shot. Usually synonymous with visit, except in scotch doubles format. The term is sometimes used to mean both players'/teams' visits combined, e.g. when referring to which inning in which a memorable shot occurred.
A form of Carom billiards for the masters of the game. Played the same way with two cue balls and a single object ball. Except, in between hitting the opponent's cue ball and the object ball your cue ball must bounce off of three rails (this game is played with an unpocketed specially sized table).