Definitions

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Baseball) same as change-of-pace.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An unexpected event.
  • noun baseball A pitch thrown with the arm motion of a fastball, but which travels at a much slower velocity because it is released without the fingers adding power to the delivery.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a baseball thrown with little velocity when the batter is expecting a fastball

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Probably alteration of change-of-pace

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