Curve ball

A curve ball was a pitch thrown in baseball which, when thrown properly, caused the trajectory of the ball to curve as it approached the batter, deceiving the batter.

In 1953, Willie Hawkins told Benny Russell and Cassie that he did not live anywhere else but uptown New York City as the white players on his team thought he was "just a colored boy who can hit a curve ball". 

In 2369, Jake Sisko told Nog that the fact that he was unable to hit his curve ball was the reason the Ferengi youth hated baseball. 

The following year, Benjamin Sisko asked Jake if he had found a way to Bob Gibson's curve ball. 

Several months later, Jake struck out his father with a curve ball, the first time it had happened.