cake walk vs cinch

cake walk

noun
  • Something extremely easy. 

  • A type of dance originating in the United States in the 19th century. 

  • From the mid 1900s, a game at a fair or party in which people walk around a numbered circle along to music. When the music is stopped, the caller draws a number from a jar and whoever is standing on or closest to that number wins a cake. 

cinch

noun
  • Something that is very easy to do. 

  • A firm hold. 

  • A variety of auction pitch in which a draw to improve the hand is added, and the five of trumps (called "right Pedro") and the five of the same colour (called "left Pedro", and ranking between the five and the four of trumps) are each worth five. Fifty-one points make a game. 

  • A simple saddle girth used in Mexico. 

  • Something that is obvious or certain to occur; a sure thing. 

verb
  • To tighten down. 

  • To bring to certain conclusion. 

  • In the game of cinch, to protect (a trick) by playing a higher trump than the five. 

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