boofhead vs ibex

boofhead

noun
  • An oversized head. 

  • An idiot; a fathead. 

  • A person with an oversized head. 

adj
  • Fatheaded; stupid; dimwitted. 

ibex

noun
  • An imaginary creature with serrated horns, somewhat similar to the heraldic antelope. 

  • A type of wild mountain goat of the genus Capra, such as the species Capra ibex. 

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