Definitions for "fastball"
a baseball thrown with maximum velocity.
(baseball) a pitch thrown with maximum velocity; "he swung late on the fastball"; "he showed batters nothing but smoke"
The ball is pitched in a fast straight line, and usually travel slightly downwards, as the home plate is slightly lower than the pitching mound.
Fastball is an American pop-rock band that formed in Austin, Texas in the 1990s. The band originally called themselves "Magneto U.S.A" but changed their name after signing with Hollywood Records.
Keywords:  supervillain, comics, name
Fastball is the name of a DC Comics supervillain.