gobby vs penilingus

gobby

noun
  • An act of fellatio. 

adj
  • Inclined to talk in a loud and offensive manner. 

  • Marked by the presence of gobs (lumps). 

penilingus

noun
  • Fellatio. 

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