floppy vs floppy disc

floppy

noun
  • A comic book. 

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

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

floppy disc

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