batshit vs piff

batshit

noun
  • Nonsense, horseshit; especially when said by or attributed to someone irrational. 

  • Fecal matter produced by bats. 

  • Extreme irrationality or unreasonableness, insanity, craziness. 

adj
  • Extremely irrational or unreasonable, insane, crazy. 

adv
  • Used as an intensifier, particularly for insane or synonyms. 

piff

noun
  • Piffle; nonsense; rubbish. 

intj
  • An exclamation of annoyance or contempt; pish; pshaw. 

adj
  • good or attractive. 

verb
  • To throw something vigorously. 

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