doddle vs piece of piss

doddle

noun
  • A job, task, or other activity that is easy to complete or simple. 

  • A hornless animal; a pollard or doddy. 

verb
  • To dodder. 

piece of piss

noun
  • Something easy to achieve. 

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