Hoo-Hoo vs bo

Hoo-Hoo

noun
  • A member of Hoo-Hoo. 

bo

noun
  • A quarterstaff, especially in an oriental context. 

  • Fellow, chap, boy. 

intj
  • An exclamation used to startle or frighten. 

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