middle name vs slogan

middle name

noun
  • A trait, activity, or action closely associated with or aptly describing a person. 

  • A name between the first given name and the family name or surname; a second or subsequent given name. 

  • One's mother's maiden name. 

slogan

noun
  • A distinctive phrase of a person or group of people (such as a movement or political party); a motto. 

  • A catchphrase associated with a product or service being advertised. 

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