bowel movement vs shiz

bowel movement

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

  • The feces thus produced. 

shiz

noun
  • shit; excrement 

  • something cool, e.g. 'That's the shiz' meaning 'That's awesome' or 'That's really cool'. 

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