shitter vs shitting

shitter

noun
  • One who defecates. 

  • A toilet or lavatory; an outhouse. 

  • The anus. 

  • Someone lacking skill, especially in a video game. 

  • An objectionable person or thing. 

shitting

noun
  • The act of defecating. 

adj
  • An intensifier, often applying more to the whole utterance than to the specific word it modifies; same as fucking. 

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