Definition of barrels

A barrel is how much money per game a player is betting. As in, "I have ten barrels at $20 a game".

24 Random Essential Billiards Terms

The interlocking connection between the butt and shaft ends of a two-piece cue stick. Usually connects via means of a steel or wooden pin, and may be protected by a collar of metal or some other material, or may connect wood-on-wood.
This is playing to a higher winning score than eight in the game of one pocket.
In snooker and other British usages, a break of 50-99 points (100 points or more being called a century), which involves potting at least 12 consecutive balls (i.e. the last 3 reds with at least 2 blacks and a pink, followed by all the colours).
A combination shot, where hitting the first ball rubs it against the center connecting line of two frozen object balls throwing the second out.
Short for left english (side), i.e. spin imparted to the cue ball by stroking it to the lefthand side of its vertical axis. Contrast right.
This is when you strike a cue ball off center to gain control on the movement on the cue ball.
A (principally American) term in eight-ball for either of the set of seven balls (stripes or solids) that must be cleared before sinking the 8 ball. Borrowed from card games. Generally used in the generic, especially in rulesets or articles, rather than colloquially by players. See also group for the British equivalent.
To play even; without a handicap. Also called heads up.
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.
This is a unique game played on a table with smaller pockets. The balls are racked in a typical pyramid, but after the break any ball can be the cue ball, and you can score by hitting a ball in or by putting the ball in after bouncing it from another object ball.
This is a bank in which the object ball hit will cross the path of the cue ball on the way to its destination.
This is the imaginary line that a ball would need to follow in order for it to result in an effective bank shot.
A predetermined number of games, usually played for a specified sum of money. Contrast race (a predetermined number of wins). Informally, sets may refer to gambling more generally, as in "I've been playing sets all day", even when the format is actually races or single games.
In snooker, the cushion opposite the top cushion and bounded by the yellow and green pockets (i.e. same as bottom cushion).
Chiefly British: Same as duck, and stemming from the same obvious etymology.
A shot where the cue ball has no top spin or back spin on it when it impacts an object ball, and "stuns" out along the tangent line. Commonly shortened to just "stun."
An abrasive tip tool used as a grinder to roughen the cue tip to better hold chalk after it has become hardened and smooth from repeated impacts with the cue ball. Tappers serve the same purpose, but are used differently. Similar to a shaper, but shallower and less rough.

1- Pocketing of the cue ball in pocket billiards. In most games, a scratch is a type of foul. "Scratch" is sometimes used to refer to all types of fouls.

2- British term/slang for Draw

When complete focus allows you to execute quality billiards play with simplicity and seeming ease.
The placement of player(s) automatically in a tournament where some have to qualify, or automatic placement in later rounds.

1- This is a knowledgeable shot showing skill on the movement of the cue ball.

2- This is an experienced one pocket pool player that shows extraordinary skill at coordinating the cue balls and object balls for safety plays.

Derived from "sitting duck", usually referring to an object ball sitting close to a pocket or so positioned that is virtually impossible to miss. Same as hanger (US, colloquial), sitter (UK).
Also known as slop. To pocket a ball by luck; "he ratted in the 9 ball"; usually employed disapprovingly.
This is the final object ball you need to pocket in order to win a game of one pocket.