discard vs pitch and toss

discard

noun
  • A discarded playing card in a card game. 

  • A temporary variable used to receive a value of no importance and unable to be read later. 

  • Anything discarded. 

verb
  • To throw away, to reject. 

  • To make a discard; to throw out a card. 

  • To dismiss from employment, confidence, or favour; to discharge. 

pitch and toss

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

  • 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. 

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