Definition of sleep a scratch

This is missing the fact that you owe a ball in a game of one pocket after a scratch.

24 Random Essential Billiards Terms

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.

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.

Used in snooker in reference to the position of the cue ball. It is "below" the object ball if it is off-straight on the top cushion side of the imaginary line for a straight pot (e.g. he will want to finish below the black in order to go into the reds).
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 players skill level, ball advantage or match advantage when using a handicapping system.
When the rules of the opening break are broken. Ex: If not enough balls contact with rails off the break.
1.A (usually unmarked) line running across the table between one diamond and its corresponding diamond on the opposite rail. See also head string, foot string, long string for examples.
2.Same as wire, sense 2. Can be used as a verb, as in "string that point for me, will you?"
3.A successive series of wins, e.g. of games or frames in a match or race.
4.Chiefly British; same as lag.
Chiefly British: Short for side spin. In Canadian usage, the term is sometimes used as a verb, "to side".
This is the imaginary line that a ball would need to follow in order for it to result in an effective bank shot.
The Higher Education Snooker and Pool Council is a voluntary, not-for-profit organisation established to promote cue sports in institutions of higher education on the island of Ireland.
Describing a shot which requires one or more balls to be played off several cushions, such as an elaborate escape or a positional shot; "he'll have to send the cue ball round the angles to get good position."
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.
A semicircle with an 11½ inch (291 mm) radius, drawn behind a snooker table's baulk line, centred on the middle of the line, and resembling the upper case letter "D" in shape. The "D" is also used in English billiards and sometimes also in blackball and other pool games played on British-style tables.
One-on-one game play.
This is to take all the money from a player or to have lost all of your own money.
This is a ball that is left in a position that allows an easy shot, while time is spent working with other balls to better your position in the game.
The overall competition between two players, two pairs of players or two teams of players, usually consisting of a predetermined number of frames or games (sometimes organized into rounds).
In snooker, the second-highest value colour ball, being worth six points.
In the game 9 Ball, making the nine ball early with a legal shot, but not on the break.
Either of the two longer rails of a billiards or pocket billiards table, bisected by a center pocket and bounded at both ends by a corner pocket. Also called a long rail.
This is playing to a higher winning score than eight in the game of one pocket.
A fast paced offensive game similar to 9-ball but only using balls numbered 1 through 7.
Pocketing the 7-ball wins the game. Under the current pro rules of 7-ball, any missed shot gives your opponent ball-in-hand.
An agreement between two players in a tournament, one of whom will advance to a guaranteed money prize if the match is won, to give a certain percentage of that money to the loser of the match. Also known as a saver.
Balls remain unmoved after a player's shot.