nosebag vs penilingus

nosebag

noun
  • Food. 

  • A nosy person. 

  • A round sack or bag to feed for a horse, mule, ox or alike animal. Usually made of canvas sides and leather bottom slipped over the nose and attached to harness by a strong strap, rope or string. Designed to feed animal in public areas and to eliminate spillage from eating. 

penilingus

noun
  • Fellatio. 

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