Definition of body english

The useless but common practice of contorting one's body while a shot is in play, usually in the direction one wishes a ball or balls to travel, as if in the vain hope that this will influence the balls' trajectories; the term is considered humorous.

24 Random Essential Billiards Terms

To fail to make a legal shot.
A ball that is easily made from many positions on the table but which is left untouched while the rack is played, so that in the event the player gets out of position, the shooter has an insurance shot. Typically an insurance ball will be in or near the jaws of a pocket.
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.
Also bigs, big balls, big ones. In eight-ball, to be shooting the striped suit (group) of balls (9 through 15); "you're big, remember", "you're big balls" or "I've got the big ones". Compare stripes, yellows, high, overs; contrast little.
In snooker, a situation where the scores are tied after all the balls have been potted, and the black ball is re-spotted and the first player to pot it wins. The players toss for the first shot, which must be taken with the cue ball in the D. A safety battle typically ensues, until an error allows a player to pot the black, or a fluke or a difficult pot is made.
Any game which uses a rack composed of less than 15 balls.
This playing to a number less than eight in a game of one pocket.
A tournament format in which a player is out of the tournament after a single match loss.
This is a shot that attempts to move a number of balls onto your side of the table in a kind of herding attempt.
This is a term used in slang to reference the bridge tool.
Common slang in the US for a cheap, poorly made cue. Compare wood.
To bungle a shot in a manner that leaves the table in a fortuitous position for the opponent. Contrast sell the farm.
An imaginary line running horizontally across a billiards table from the second diamond (from the foot end of the table) on one long rail to the corresponding second diamond on the other long rail. The foot string intersects the long string at the foot spot. It is rarely drawn on the table.
Chiefly British. This is a shot in a snooker game where the first object ball hit contacts another object ball and the second one is pocketed. If both of the balls are red, or if the second ball would be on if the first ball had not been deemed free then it is an allowed shot.
Billiard Congress of America. The official governing body for pocket billiards in the United States.
Deviation of a ball from its initial direction of travel. Often the result of a poor-quality table and may be an artifact of the cloth, the bed, a ball with uneven weight distribution, or simply the floor the table stands on being uneven.
Exact opposite of fast, all senses.
The ball required to guarantee victory in a match. Sometimes used figuratively to mean the last difficult ball required (chiefly British and usually used in multi-frame matches, particularly snooker).
You can cheat the pocket by angling your shot to go in at the right or left of the pocket opening when sinking a shot. This permits the cue ball to strike the object ball at a different contact point than the most obvious one.
British term referring to the base or metaphorical "feet" of a ball that rattles in the jaws of a pocket before eventually dropping. Usually said of an object ball for which the intention was to pot it.
Same as spot
Linen made from flax and produced in Ireland which is often used to wrap the gripping area of the butt of a cue.
This is playing to a higher winning score than eight in the game of one pocket.
This is to intentionally foul by slightly moving the ball, or playing another type of illegally defensive shot in a game where the ball is just turned over to the other player. Like in one pocket, you still take the foul, but can leave the other player with a challenging shot.