Mexican standoff vs prairie meet

Mexican standoff

noun
  • A near-collision between two trains; an averted cornfield meet. 

  • A pot that is split among the players because of a tie. 

  • An inconclusive standoff, ending in mutual retreat. 

  • A confrontation among two or more armed parties, none of which wants to attack first (fearing that the other could retaliate), but neither of which will disarm (for fear the other will attack). 

  • A stalemate, or a confrontation among two or more sides that no side can win. 

  • A three-way or more standoff. 

prairie meet

noun
  • Synonym of cornfield meet 

How often have the words Mexican standoff and prairie meet occurred in a corpus of books? (source: Google Ngram Viewer )