dog eat dog vs flexible

dog eat dog

adj
  • Ruthlessly acquisitive or competitive. Describes a business or other set of circumstances where people try to succeed at the expense of other people. 

flexible

adj
  • Willing or prone to give way to the influence of others; not invincibly rigid or obstinate. 

  • Capable or being adapted or molded in some way. 

  • Capable of being flexed or bent without breaking; able to be turned or twisted without breaking. 

noun
  • Something that is flexible. 

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