- (baseball) a throw in baseball that flies in an erratic way and is difficult to hit well because
the pitcher holds the ball between the fingertips or knuckles
Example Sentences Including 'knuckleball'
And while he doesn't use it, the 30-year-old Franklin insisted he can throw a wicked knuckleball.
Toronto Sun (2003)
Tim Wakefield befuddled New York with his knuckleball , taking a 5-0 lead into the seventh before he got wild.
Ottawa Sun (2003)
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