parlay vs snowball

parlay

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

  • 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. 

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

snowball

verb
  • To rapidly grow out of proportion or control. 

  • To receive ejaculated semen in one's mouth, and to then pass it back and forth between one’s mouth and another person’s mouth. 

  • To pelt with snowballs; to throw snowballs at. 

  • To play at throwing snowballs. 

noun
  • A cocktail made from lemonade and advocaat. 

  • A ball of snow, usually one made in the hand and thrown for amusement in a snowball fight; also a larger ball of snow made by rolling a snowball around in snow that sticks to it and increases its diameter. 

  • A sex act involving passing ejaculated semen from one person's mouth to another's. 

  • A type of ice dessert. 

  • A type of cake. 

  • Something that snowballs (grows rapidly out of control). 

adj
  • Of something with rapid growth, often uncontrolled. Compare snowball effect. 

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