boofhead vs nerk

boofhead

noun

  • An idiot; a fathead. 

  • An oversized head. 

  • A person with an oversized head. 

adj

  • Fatheaded; stupid; dimwitted. 

nerk

noun

  • A stupid or objectionable person. 

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