Definition of lag

To determine the order of play, players (representing only themselves, or teams) each simultaneously shoot a ball from the kitchen (or in British games, from the baulk line) to the end rail and back toward the bottom rail. Whichever shooter's ball comes to rest closest to the bottom rail gets to choose who breaks the rack. It is permissible but not required for the lagged ball to touch or rebound from the bottom rail, but not to touch the side rails. Lagging is usually a two-party activity, though there are games such as cutthroat in which three players might lag. In the case of a tie, the tying shooters re-lag. The lag is most often used in tournament play or other competitions. In hard-break games like nine-ball and eight-ball the winner of the lag would normally take the break, while in soft-break games like straight pool would likely require the loser of the lag to break, since breaking would be a disadvantage.

24 Random Essential Billiards Terms

This is placed on a ball by hitting it slightly below center. This action makes the ball travel in a motion against its originally hit direction.
A soft joint-like plastic or linen base material. It lets the cue whip, putting more English on the cue ball.
As an adjective or compound noun: push-out. A rule in many games (most notably nine-ball, after and only after the break shot), allowing a player to "push out" the cue ball to a new position without having to contact any ball, much less pocket one or drive it to a cushion, but not counting any pocketed ball as valid (other foul rules apply, such as double hits, scratching the cue ball, etc.), with the caveat that the opponent may shoot from the new cue ball position or give the shot back to the pusher who must shoot from the new position. In nine-ball particularly, and derived games such as seven-ball and ten-ball, pocketing the money ball on a push-out results in that ball being respotted (which can be used to strategic advantage in certain circumstances, such as when the break leaves no shot on the ball-on, and failure to hit it would give the incoming player an instant-win combination shot on the money ball).
The ornamentation on a cue, between the wrap and the joint, is often made by inlaying exotic materials into the wood so the inlays form points. The value of a cue is often based on the number points.
"Pocket billiards," or a game in which balls are shot into pockets.
Two or more object balls that are touching or are close together.
One of the alternating turns players (or doubles teams) are allowed at the table, before a shot is played that concedes a visit to his/her opponent (e.g. "he ran out in one visit"). Usually synonymous with inning as applied to a single player/team, except in scotch doubles format.
The person who is a provider of all or part of a player's stake (money) for a gambling session in which one is not a player.
This describes a shot in carom games where the cue ball is driven all the way across the long rail, crossing the table, to score a point.
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.
White talcum powder placed on a player's bridge hand to reduce moisture so that a cue's shaft can slide more easily. It is not provided in many establishments as many recreational players will use far more than is necessary and transfer it all over the table's surface. Venues that do provide it usually do so in the form of compress cones about 6-inches tall. Some serious players bring their own, in a bottle or a porous bag that can be patted on the bridge hand. Many players prefer a pool glove. Talc is frequently mistakenly referred to as "hand chalk", despite not being made of chalk.
This is to take all the money from a player or to have lost all of your own money.
A type of safety shot in the middle of a safety exchange that is not intended to put the opponent in a difficult situation regarding their next safety, but rather played so as to not leave an easy pot on. A typical example in snooker, which sees the most shots of this kind, is a slow roll-up into the pack.
A tight, Spandex glove covering usually most or all of the thumb, index finger and middle finger, worn on the bridge hand as a more convenient and less messy alternative to using hand talc, and for the same purpose: a smooth-gliding stroke.
This is to direct the cue ball by barely contacting an object ball.
The wrap is situated over the handle of the cue, below the forearm and above the butt. Common materials used are Irish linen, leather, or cork. These materials make sense, because they provide a sure grip, long life, and help to absorb moisture from the hand when you are sweating through a difficult rack. In addition, wraps are used to compliment the color or style of the cue stick and to elegantly complete the look.
Also sidespin, side-spin, side. spin placed on the cue ball when hit with the cue tip to the left or right of the ball's center; usually called english in American usage. See english, in its narrower definition, for details on the effects of side spin.
Same as cheating the pocket. Principally used in snooker.
The material which covers the bed and cushions of a pool table. The cloth used to cover a pool table is very special and can come in a variety of grades. Along with the general quality of the table itself, the cloth play a very important role in how a particular table plays.
A barrel is how much money per game a player is betting. As in, "I have ten barrels at $20 a game".
Three Ball is a pocket billiards folk game played with three standard pool object balls and a cue ball. The goal is to pocket the three object balls in as few shots as possible.
On a shot, the extension of the cue stick through the cue ball position during the end of a player's stroke in the direction originally aimed.
A point bead on a scoring string.
An imaginary line dividing the table into two equal halves lengthwise. It intersects the head string, center string and foot string at the head spot, center spot and foot spot, respectively.