fiacre vs yellow cab

fiacre

noun
  • A small horse-drawn carriage for hire; a hackney carriage. 

yellow cab

noun
  • Synonym of taxi. 

  • An Asian woman who sleeps with white men, particularly such Japanese women when regarded as a race traitor. 

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