Definition of brown ball

In snooker, the highest-value baulk colour, worth 4 points.

24 Random Essential Billiards Terms

Same as angle of reflection.
A ball that is easily made from many positions on the table but which is left untouched while the rack is played, so that in the event the player gets out of position, the shooter has an insurance shot. Typically an insurance ball will be in or near the jaws of a pocket.
This is to step up to the table and successfully execute a difficult shot.
To disguise the level of one's ability to play in various ways such as using a lemonade stroke; intentionally missing shots; making an uneven game appear "close"; purposefully losing early, inconsequential games. Sandbagging is a form of hustling, and in handicapped leagues, considered a form of cheating. See also dump and on the lemonade.
Hitting the object ball with not enough of a cut angle; hitting the object ball too full or "fat". It is a well-known maxim that overcutting is preferable to undercutting. See also professional side of the pocket.
To bungle a shot in a manner that leaves the table in such a fortuitous position for the opponent that there is a strong likelihood of losing the game or match. Contrast sell out.
This is a shot that attempts to move a number of balls onto your side of the table in a kind of herding attempt.
Same as triple.
To elevate the back of the cue on a shot.
Describes tightly woven and well-used (but clean) billiard table cloth (baize), upon which the balls move quickly and roll farther, as they experience less friction than with fuzzy or dirty cloth. May be used more extendedly, as in "this is a really fast table". Fast cloth makes draw (screw) shots somewhat less effective, as there is less purchase for the cue ball's back spin. By the same token, slide and stop shots are easier on fast cloth because it is so comparatively smooth.
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.
This is to lay down the money on the table in a betting game before play begins to ensure pay up at the end.
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.
Also (chiefly British) programme. Short for shot program. The enumerated trick shots that must be performed in the fields of artistic billiards (70 pre-determined shots) and artistic pool (56 tricks in 8 "disciplines").
A player who during the course of a tournament does not lose focus. Typically said of those players that regularly make it to the finals of a tournament.
In snooker, the second-highest value colour ball, being worth six points.
Asian Pocket Billiard Union. The APBU is a member of the WPA.
Same as gutter table. A table with a ball return system, as opposed to a drop pocket table.
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.
Also in the zone. Describes an extended period of functioning in dead stroke ("She's in the zone").
Alternate name for the cue ball.
In carom billiards games, a term for the opponent's cue ball, which for the shooting player is another object ball along with the red.
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.
In one pocket pool this means that you change your play based on where the count is during the game. If you are ahead you might choose more conservative shots, and if you are behind you could choose more aggressive shots.
Common slang in the US for a cheap, poorly made cue. Compare wood.