fook vs piss

fook

verb
  • To fuck. 

intj
  • Fuck. 

piss

verb
  • To urinate. 

  • To rain heavily. 

  • To discharge as or with the urine. 

  • To achieve easily. 

intj
  • Expresses anger, disappointment or dissatisfaction. 

noun
  • The act of urinating. 

  • Urine. 

  • An intensifier. 

  • Alcoholic beverage, especially of inferior quality. 

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