Whateverville vs wop-wops

Whateverville

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

wop-wops

noun
  • An out of the way place; the boondocks or backcountry. 

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