twat vs vart

twat

noun
  • The vagina or vulva. 

  • A contemptible and stupid person, idiot. 

verb
  • To hit, slap. 

vart

noun
  • An emission of air from the vagina, especially when audible; a queef. 

verb
  • To queef. 

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