corncob vs step up

corncob

verb
  • To defeat (someone) who then refuses to admit defeat. 

  • To disintegrate by the blades becoming severed from the axis 

noun
  • The central cylindrical core of an ear of corn (maize) on which the kernels are attached in rows. 

step up

verb
  • To assume or take responsibility. 

  • To increase, augment, or advance, especially by one or more steps. 

How often have the words corncob and step up occurred in a corpus of books? (source: Google Ngram Viewer )