Yahoo vs wag

Yahoo

noun
  • One of a race of brutes, who look and act similar to men, inhabiting the same land as the civilized Houyhnhnms. 

  • An employee of the Internet company Yahoo!. 

wag

noun
  • A witty person. 

  • An oscillating movement. 

verb
  • To swing from side to side, such as of an animal's tail, or someone's head, to express disagreement or disbelief. 

  • To play truant from school. 

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