fatheaded vs lowbrow

fatheaded

adj
  • Characteristic of a fathead; stupid 

lowbrow

adj
  • Unsophisticated, not intended for an audience of intelligence, education or culture. 

noun
  • Someone or something of low education or culture. 

  • An underground populist visual art movement that arose in the Los Angeles area in the late 1960s, inspired by comics, punk music, graffiti, etc. 

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