coin toss vs pitch and toss

coin toss

noun
  • A particular instance where a coin is launched in the air, and whichever side that it lands on finalises a decision. 

  • An uncertain selection between two outcomes of similar likelihood, or between two objects of similar quality. 

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. 

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