bowel movement vs dumping

bowel movement

noun
  • The discharge of feces from the body, an act of defecation. 

  • The feces thus produced. 

dumping

noun
  • The disposal of something no longer needed, or of no value. 

  • Selling goods at less than their normal price, especially in the export market as a means of securing a monopoly. 

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