duck
The term "duck," as often used in the game of pocket billiards (or pool), represents an object ball that is directly in front of a pocket (one that is typically easy to make, or nearly impossible to miss). These types of balls are referred to as "ducks" because they are "as easy to shoot as a duck."
I played the shot a little too softly, but at least it left me with a duck for my next shot.
By Giskard