nail it vs step on it

nail it

verb
  • Synonym of hit the nail on the head 

  • Used other than figuratively or idiomatically: see nail, it. 

step on it

verb
  • To drive fast; to step on the accelerator. 

  • To act quickly. 

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