do one's business vs shart

do one's business

verb

  • To defecate or urinate. 

shart

verb

  • To unintentionally defecate due to relaxing the anus to flatulate. 

noun

  • An instance of sharting. 

  • The resulting excrement from sharting. 

How often have the words do one's business and shart occurred in a corpus of books? (source: Google Ngram Viewer )