Blimp vs dickhead

Blimp

noun
  • A person considered similar to Colonel Blimp in appearance, thought, or expression, particularly (historical or archaic, derogatory) a reactionary middle-class Englishman during the Interwar Period. 

dickhead

noun
  • A jerk; a mean or rude person. 

  • A stupid or useless person. 

  • The glans penis. 

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