pinball vs playball

pinball

noun
  • The ball used in pinball. 

  • A situation where a ball is frantically kicked between many players. 

  • A game, played on a device with a sloping base, in which the player operates a spring-loaded plunger to shoot a ball, between obstacles, and attempts to hit targets and score points. 

verb
  • To dart about rapidly. 

playball

noun
  • A ball for use in games. 

How often have the words pinball and playball occurred in a corpus of books? (source: Google Ngram Viewer )