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knuckle ball

or knuck·le·ball (nŭk′əl-bôl′)
n. Baseball
A slow pitch that has almost no spin and veers erratically, thrown by gripping the ball with the nails or knuckles near the tips of the index and middle fingers, and often the third finger.

knuck′le·ball′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Baseball) a pitcher who throws knuckleballs
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The knuckleballer pitched the eighth, striking out one and hitting a batter.
Even the veteran actor Chelcie Ross, then 45, pulled off his role as the aging knuckleballer. But no one in the cast was more comfortable in the role of a ball player than Dennis Haysbert, who was a multi-sport athlete in high school.
Only two starters in the majors - Houston's Dallas Keuchel and Atlanta knuckleballer R.A.
Knuckleballer Steven Wright and closer Craig Kimbrel also were selected.
But any discussion of "the durable and dominant aces of old" should rightly include the lefty knuckleballer. From 1971 through 1975, Wood won 106 games for the Chicago White Sox, working an average of 336 1/3 innings a year.
In the bottom of the inning, David Ortiz drove in Hanigan with a single to right, and Ramirez hit a two-run blast to left off Toronto starter and knuckleballer R.A.
Meanwhile, the bullpen had its work horses, too, with Wilhelm accruing more than a third of the team's relief innings and fellow knuckleballer Fisher contributing nearly as many.
In the early 50s they gave up on one of the great early relievers, the Hall of Famer knuckleballer Hoyt Wilhelm, considered old by the Giants at 34 in 1956.
Dickey, a knuckleballer who was voted the National League's top hurler, surrendered four runs on six hits over four innings.
A projectile with little or no spin tends to go straight for a short distance, then move about unpredictably--which is why in baseball, when a knuckleballer is on the mound pitching, the catcher wears an oversize catcher's mitt.
Toronto, who finished 22 games behind the New York Yankees in the AL East, are now rated as favorites after also adding NL Cy Young winning knuckleballer R.A.
In other words, you might say the knuckleballer has thrown marketers a curve.