counterfeit vs spoof

counterfeit

adj
  • False, especially of money; intended to deceive or carry appearance of being genuine. 

  • Inauthentic. 

  • Assuming the appearance of something; deceitful; hypocritical. 

noun
  • A non-genuine article; a fake. 

  • One who counterfeits; a counterfeiter. 

verb
  • To falsely produce what appears to be official or valid; to produce a forged copy of. 

  • Of a turn or river card, to invalidate a player's hand by making a better hand on the board. 

spoof

adj
  • Fake, hoax. 

verb
  • To falsify. 

  • To gently satirize. 

  • To ejaculate, to come. 

  • To deceive. 

noun
  • A drinking game in which players hold up to three (or another specified number of) coins hidden in a fist and attempt to guess the total number of coins held. 

  • A light parody. 

  • Nonsense. 

  • An act of deception; a hoax; a joking prank. 

  • Semen. 

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