Whateverville vs bumfuck middle of nowhere

Whateverville

name
  • A substitute placename for an inhabited place, a city or town, with an unknown or unspecified name. 

bumfuck middle of nowhere

noun
  • Synonym of bumfuck nowhere 

How often have the words Whateverville and bumfuck middle of nowhere occurred in a corpus of books? (source: Google Ngram Viewer )