Yank vs badger

Yank

noun
  • An American: someone from the United States. 

  • A Yankee, a Northerner: someone from the Northern United States, especially from New England. 

badger

noun
  • Any mammal of three subfamilies, which belong to the family Mustelidae: Melinae (Eurasian badgers), Mellivorinae (ratel or honey badger), and Taxideinae (American badger). 

  • A native or resident of the American state, Wisconsin. 

verb
  • To pester; to annoy persistently; to press. 

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