hinderlin vs sit upon

hinderlin

noun

  • The buttocks. 

  • A worthless degenerate. 

sit upon

noun

  • buttocks, bottom 

  • small, portable cushion for sitting on 

verb

  • Synonym of sit on (“block, suppress, hold back”) 

How often have the words hinderlin and sit upon occurred in a corpus of books? (source: Google Ngram Viewer )