gollop vs snarf

gollop

verb
  • To eat greedily or quickly. 

snarf

verb
  • To eat or consume greedily. 

  • To take something by dubious means, but without the connotations of stealing; to take something without regard to etiquette. 

  • To slurp (computing slang sense); to load in entirety; to copy as a whole. 

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