pee vs piss

pee

noun
  • Urine. 

  • The sliding weight on a steelyard. 

  • The name of the Latin-script letter P. 

  • An act of urination. 

  • Pence; penny (a quantity of money) 

  • The bill of an anchor. 

verb
  • To drizzle. 

  • To urinate. 

  • To urinate on oneself. 

piss

noun
  • Urine. 

  • The act of urinating. 

  • An intensifier. 

  • Alcoholic beverage, especially of inferior quality. 

intj
  • Expresses anger, disappointment or dissatisfaction. 

verb
  • To rain heavily. 

  • To discharge as or with the urine. 

  • To urinate. 

  • To achieve easily. 

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