mooch vs piddle away

mooch

verb
  • To steal or filch. 

  • To wander around aimlessly, often causing irritation to others. 

  • To beg, cadge, or sponge; to exploit or take advantage of others for personal gain. 

noun
  • An aimless stroll. 

  • One who mooches; a moocher. 

  • A unit of time comprising ten days, used to measure how long someone holds a job. 

piddle away

verb
  • To piss away: to waste or squander time, money, etc. 

  • He piddled away three hours at the bus station waiting for Gabe to show up. 

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