middle name vs rallying cry

middle name

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

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

  • One's mother's maiden name. 

rallying cry

noun
  • A form of war cry that encourages people to unite in a common cause 

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