pitch and toss vs toss-up

pitch and toss

noun
  • A game in which coins are thrown at a mark, the person who throws nearest having the right of tossing all the coins, and keeping those which come down head uppermost. 

  • Careless treatment of something, or trusting to luck about it. 

  • A game played by tossing a coin and calling heads or tails. 

toss-up

noun
  • The toss of a coin used to decide some issue. 

  • A decision in which neither choice is clearly favorable or unfavorable, or for which the outcome does not matter. 

  • Either of two outcomes that are equally likely. 

How often have the words pitch and toss and toss-up occurred in a corpus of books? (source: Google Ngram Viewer )