pickpocket vs snarf

pickpocket

verb
  • To pick pockets; to steal. 

noun
  • One who steals from the pocket of a passerby, usually by sleight of hand. 

snarf

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

  • To eat or consume greedily. 

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

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