POST vs limber up

POST

verb
  • To successfully perform a power-on self-test. 

noun
  • An HTTP request method used to send an arbitrary amount of data to a web server. 

limber up

verb
  • To stretch one's muscles to make them more limber, usually as a preparation for physical exercise. 

  • To make (someone or something) more limber or flexible. 

  • To prepare; to make oneself ready. 

  • To attach a limber. 

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