Definition of Golden break

1- Short for "pool shark", poolshark (US); sharp, "pool sharp" (British)

2- Verb: To perform some act or make some utterance with the intent to distract, irritate or intimidate the opponent so that they do not perform well, miss a shot, etc. Most league and tournament rules forbid blatant sharking, as a form of unsportsmanlike conduct, but it is very common in bar pool.
Noun: Another term for hustler.
Noun: A very good player. This usage is common among non-players who often intend it as a compliment and are not aware of its derogatory senses .

In snooker, the second-highest value colour ball, being worth six points.

This refers to a shot that travels on a shallower path due to the english placed on it. This is to come up on the near side of a pocket on a bank shot.

This is an object sometimes placed underneath the cue tip.

In snooker, a situation during a frame in which the first line of the remaining reds grouped together, where the original pack was, are in a straight horizontal line. This has implications when opening the pack, as a full-ball contact off the top cushion will usually cause the cue-ball to stick to the red and fail to develop a potting opportunity.

Any shot where the cue ball is intentionally jumped into the air to clear an obstacle

This is a type of shot where the cue ball goes off the rail before it heads to contact the object ball, thus giving the cue better position in some shots.

In snooker and British pool, the successful potting of all object balls-on in a single frame.

Same as gapper

Successive games won without the opponent getting to the table; a five-pack would be a package of five games.

The effect of shooting regulation-weight object balls with an old-fashioned over-weight bar table cue ball, such that the cue ball moves forward to occupy (sometimes only temporarily), or go beyond, the original position of the object ball, even on a draw or stop shot, because the mass of the cue ball exceeds that of the object ball. Players who understand smash-through well can use it intentionally for position play, such as to nudge other object balls nearby the target ball. Smash-through also makes it dangerous in bar pool (when equipped with such a cue ball) to pocket straight-on ducks with a stop shot instead of by cheating the pocket because of the likelihood of scratching the cue ball.

This is an instance when the person not taking their turn interferes with the game play, this is recorded as a foul.

In snooker, the cushion opposite the top cushion and bounded by the yellow and green pockets (i.e. same as bottom cushion).

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.

A cut shot in which if a line were drawn from the cue ball to the rail behind the targeted object ball, perpendicular to that rail, the object ball would lie beyond the line with respect to the pocket being targeted.

A shot in which the cue ball is potted after caroming off another ball. In snooker and most pool games doing this would be a fault (foul), but the move will score points in many games in which hazards (as such) apply, such as English billiards, or in the final or game point in Cowboy pool. The term derives from this hazard costing the player points in early forms of billiards.

Describes the propensity of a player losing small sums of money at gambling to suddenly sharply increase the stakes; often continuing to lose until broke. Compare Chasing one's money.

The act of playing a devastating safety which leaves the opponent in a situation where it is very difficult or near impossible to make a legal hit on an object ball

This refers to a shot that is not banked, does not hit a rail and goes into the pocket without contacting any other balls on the table.

This a shot that hits the object ball at the nine ball to see if you can get lucky by sinking the nine ball in any pocket. (also see Cheese the Nine and Rolling the Cheese).

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 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 visit.

(Chiefly British) Said of an object ball that can easily be reached by the cue ball, or of a pocket that can easily be reached by a selected object ball, usually directly (i.e. without intervening kick, bank, carom, kiss or combination shots).