The document defines an overhead pass as a technique used in volleyball to pass the ball to a teammate to set up an offensive play. It describes the proper mechanics of the overhead pass, including starting in a crouched position with knees bent and weight evenly distributed, using fingers and thumbs to form a pocket and make contact with the ball, distributing weight to the balls of the feet upon contact, and extending the arms, knees, and ankles to propel the ball upward while following through in the direction of the pass.