floppy vs pendulous

floppy

adj
  • Limp, not hard, firm, or rigid; flexible. 

noun
  • A comic book. 

  • An insurgent in the Rhodesian Bush War, called as such for the way they "flop" when shot. 

pendulous

adj
  • having branches etc. that bend downwards; drooping or weeping 

  • indecisive or hesitant 

  • Hanging from, or as if from, a support. 

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