fellatio vs gobby

fellatio

noun
  • The stimulation of the penis (or testicles) using the mouth. 

gobby

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

  • Marked by the presence of gobs (lumps). 

noun
  • An act of fellatio. 

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