chubber vs stiffy

chubber

noun
  • An erect penis. 

  • A chubby person. 

  • An outdoorsman. 

stiffy

noun
  • An erection of the penis. 

  • An extended magazine of a gun. 

  • A computer floppy disk of the kind supplied in a stiff plastic outer shell. 

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