Definition of angle of reflection

The angle from which a ball rebounds from a rail, as measured from the perpendicular to the rail.

24 Random Essential Billiards Terms

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.
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.
To give a handicap to an opponent where they have to win a specified number less games than the other player in order to triumph in the match. The name refers to posting games on the scorekeeping mechanism known as a wire, though it is employed when no actual use of the particular device is available or intended.
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 pills, tally balls and shake balls. Small, round markers typically numbered 1 through 15 or 16, which are placed in a bottle for various random assignment purposes, such as in a tournament roster, to assign order of play in a multiplayer game, or to assign particular balls to players in games such as kelly pool.
Means either push out or push shot, depending on the context.
This is a low bet in a game with action.
A pool room employee who plays with a good degree of skill.
Describes lucky or unlucky "rolls" of the cue ball; "I had good rolls all night; "that was a bad roll." However, when said without an adjective ascribing good or bad characteristics to it, "roll" usually refers to a positive outcome such as in "he got a roll".
The roll: same as the lag.
Also simply maximum. In snooker, the highest break attainable with the balls that are racked; usually 147 points starting by potting fifteen reds, in combination with blacks, and clearing the colours. Also called a 147 (one-four-seven). In six-red snooker, the maximum break is only 75 points, due to fewer red balls and thus fewer black-scoring opportunities.
This is a shot where the cue ball double kisses in order to direct the object ball toward the pocket.

An attempt of a legal clean shot (not a slop shot) that goes badly wrong due to improper stroke, stance, table position or table conditions in which the result of the shot is completely unexpected and not what was predicted at all.

When a player is playing flawlessly, just "cannot miss" and the game seems effortless.
This is when you win a game of one pocket on your opponents break.
When a successful non penalized break is achieved which gives the object balls a broad spread on the table.
A pool room may refer to an establishment that is the same as a pool hall. A private residence may also have a pool room. That would be a room in a house or a recreation room in an apartment building, hotel or condominium complex that has a room that the main activity is dedicated to playing pool.
This refers to the cluster of balls remaining in a similar position to where they were within the break
When a particular ball is given as a handicap in nine-ball, designating that ball in turn means that it must be made in rotation, when it is the lowest numerical ball remaining on the table, and cannot be made to garner a win earlier in the game by way of a combination, carom or any other shot. For example, if a player is spotted the 8 ball, he only wins by making that ball after balls 1 through 7 have been cleared from the table.
This is a handicapping method where one player gets the break, and is allowed to choose any ball afterwards to put in their pocket.
Play, from the opening break shot until one player has won (or the game has been halted for some reason by a referee). Games are the units that make up matches, races (in some senses of that term) and rounds. Essentially the same as frame, except with regards to straight pool, which is a multi-rack game.
A point bead on a scoring string.
A cue made specificaly for an individual player. The term may also describe a quality product of a low volume yielding cue maker who puts more time and effort into both the design and structural integrity of the cue stick, as opposed to a cue manufacturer that builds their cues in a more assembly line fashion.
Any shot where the cue ball is intentionally jumped into the air to clear an obstacle
This is a shot in snooker where the cue ball follows a struck object into the pocket.