about-face vs slalom

about-face

verb
  • To turn 180 degrees to face the opposite direction. 

  • To change opinion or attitude drastically. 

noun
  • A reversal in direction; a reversal of attitude or opinion. 

  • An abrupt turn to face the opposite direction. 

slalom

verb
  • To move in a slalom-like manner. 

  • To race in a slalom. 

noun
  • A race or competition wherein participants each perform the sport of slalom. 

  • A course used for the sport of slalom. 

  • The sport of skiing in a zigzag course through gates. (Often used attributively) 

  • Any similar activity on other vehicles, including canoes and water skis. 

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