breadcrumb vs cootie

breadcrumb

noun
  • One in a series of clues leading to a person or place. 

  • A single link in a chain indicating the hierarchical location of a directory, web page or similar, used as a navigation aid. 

  • A tiny piece of bread, either one that falls from bread as it is cut or eaten, or one made deliberately by crumbling bread. 

verb
  • To add navigational breadcrumbs to (a web page or user interface). 

  • To use clues or enticements to lead someone in the desired direction. 

  • To sprinkle breadcrumbs on to food, normally before cooking. 

cootie

noun
  • A sideswiper, a type of telegraph key. 

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

  • A louse (Pediculus humanus). 

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

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