feces vs shiz

feces

noun
  • Digested waste material (typically solid or semi-solid) discharged from a human or mammal's stomach to the intestines; excrement. 

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 feces and shiz occurred in a corpus of books? (source: Google Ngram Viewer )