full stop vs pinprick

full stop

noun
  • The punctuation mark "." (indicating the end of a sentence or marking an abbreviation). 

  • A decisive end to something. 

intj
  • Used to emphasize the end of an important statement or point when speaking to show something is not up for discussion or debate. 

pinprick

noun
  • An insignificant puncture made by a pin or similar point. 

  • A mildly annoying wound or damage. 

  • A very tiny dot. 

verb
  • To produce a jabbing sensation, like a pinprick, in. 

  • To puncture with a tiny hole or holes. 

How often have the words full stop and pinprick occurred in a corpus of books? (source: Google Ngram Viewer )