shemale vs tranny

shemale

noun
  • A male-to-female transsexual or transgender person; a trans woman. 

  • A male animal which displays female traits or behaviors; for example, a male reptile which gives off female pheromones. 

tranny

noun
  • A transsexual, transgender, or transvestite person, usually a trans woman. 

  • A mechanical transmission, a gearbox. 

  • A transistor radio. 

  • A transformer. 

  • A transition between moves. 

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