nastygram vs pisspot

nastygram

noun
  • A written communication containing unpleasant material, especially one that criticizes, insults, or intimidates the recipient. 

pisspot

noun
  • A very unpleasant person, particularly a mean, nasty, or contemptible one. 

  • An unpleasant or disgusting place or thing. 

  • A large quantity. 

  • A consumer of large quantities of alcohol; a drunkard. 

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