What is the pocket in bowling?

Answer 1

The pocket refers to the spot you want to hit with a Bowling ball to give you the greatest chance of getting a strike.

For right-handed bowlers, that spot is the space between the headpin and the pin immediately to its right. Since that pin is called the 3-pin, the space is referred to as the 1-3 pocket.

Left-handers (and righties throwing a backup ball or a reverse hook) aim for the spot between the headpin and the 2-pin: the 1-2 pocket.

Answer 2

1-3 pin pocket

The 1 pin and the 3 pin is the pocket for a right handed bowler, and the 1-2 pin is the pocket for a left handed bowler. Just as important is the ball should carry through the pocket, and "take out" the 5 pin.