POST vs pull one's socks 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. 

pull one's socks up

verb
  • To start making an effort; to renew or redouble one's efforts. 

How often have the words POST and pull one's socks up occurred in a corpus of books? (source: Google Ngram Viewer )