embolus vs gob

embolus

noun
  • The structure on the end of the palp of male arachnids which contains the opening to the ejaculatory duct. 

  • An obstruction causing an embolism: a blood clot, air bubble or other matter carried by the bloodstream and causing a blockage or occlusion of a blood vessel. 

gob

noun
  • The mouth. 

  • A sailor. 

  • A whoopee pie. 

  • A lump of soft or sticky material. 

  • Waste material in old mine workings, goaf. 

  • Saliva or phlegm. 

verb
  • To pack away waste material in order to support the walls of the mine. 

  • To spit, especially to spit phlegm. 

  • To gather into a lump. 

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