foul vs frou-frou

foul

adj
  • Detestable, unpleasant, loathsome. 

  • Entangled and therefore restricting free movement, not clear. 

  • Obscene, vulgar or abusive. 

  • Disgusting, repulsive; causing disgust. 

  • (with "of") Positioned on, in, or near enough to (a specified area) so as to obstruct it. 

  • Dishonest or not conforming to the established rules and customs of a game, conflict, test, etc. 

  • Unpleasant, stormy or rainy. 

  • Covered with, or containing unclean matter; dirty. 

  • Outside of the base lines; in foul territory. 

verb
  • To make contact with an opposing player in order to gain advantage. 

  • To become clogged. 

  • To become entangled. 

  • To come into contact or collide with. 

  • To make dirty. 

  • To besmirch. 

  • To hit a ball outside of the baselines. 

  • To hit outside of the baselines. 

  • To clog or obstruct. 

  • To entangle. 

  • To commit a foul. 

noun
  • A breach of the rules of a game, especially one involving inappropriate contact with an opposing player in order to gain an advantage; for example, tripping someone up in soccer, or contact of any kind in basketball. 

  • A foul ball, a ball which has been hit outside of the base lines. 

  • A (usually accidental) contact between a bowler and the lane before the bowler has released the ball. 

frou-frou

adj
  • Unimportant, silly, useless. 

  • Liable to create the sound of rustling cloth, similar to 19th-century dresses. 

  • Highly ornamented, overly elaborate; excessively girly. 

noun
  • A rustling sound, particularly the rustling of a large silk dress. 

verb
  • To move with the sound of rustling dresses. 

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