loosen vs shart

loosen

verb
  • To relieve (the bowels) from constipation; to promote defecation. 

  • To make loose. 

  • To free from restraint; to set at liberty. 

  • To become unfastened or undone. 

  • To become loose. 

  • To disengage (a device that restrains). 

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 loosen and shart occurred in a corpus of books? (source: Google Ngram Viewer )