discotheque vs foxtrot

discotheque

noun
  • A nightclub where dancing takes place. 

foxtrot

noun
  • A ballroom dance with a slow-slow-quick-quick rhythm. 

  • A pace with short steps, as in changing from trotting to walking. 

verb
  • To dance the foxtrot. 

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