long shot vs parlay

long shot

noun
  • A master shot, the primary wide shot of a scene into which the closeups will be edited later. 

  • A shot fired at a distant target. 

  • Something unlikely; something that has little chance of happening or working. 

parlay

verb
  • To carry forward the stake and winnings from a bet on to a subsequent wager or series of wagers. 

  • To convert (a situation, thing, etc.) into something better. 

  • To increase (an asset, money, etc.) by gambling or investing in a daring manner. 

noun
  • A bet or series of bets where the stake and winnings are cumulatively carried forward; an accumulator. 

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