cootie vs vermin

cootie

noun
  • A nest-building female American coot (counterpart to cooter). 

  • Any germ or contaminant, real or imagined, especially from the opposite gender (for pre-pubescent children). 

  • A sideswiper, a type of telegraph key. 

  • A louse (Pediculus humanus). 

vermin

noun
  • Animals that prey on game, such as foxes or weasels. 

  • Any one of various common types of small insects or animals which cause harm and annoyance. 

  • Obnoxious, or mean and offensive person or people. 

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