12-to-6

A curve ball, the motion of which evokes the hands of clock. The ball starts high (at "12-o'clock") and drops sharply as it reaches the strike zone ("6-o'clock"). Also known as "12-to-6 Downers" or a "12-to-6 Drop". Barry Zito is perhaps baseball's best current practitioner of the 12-to-6 curve.