flagship vs pisser

flagship

noun
  • The most important one out of a related group. 

  • The ship occupied by the fleet's commander (usually an admiral); it denotes this by flying his flag. 

  • The ship regarded as most important out of a group, e.g. a nation's navy or company's fleet. 

verb
  • To act as a flagship for. 

pisser

noun
  • Someone or something impressive or remarkable. 

  • That which pisses, particularly a penis. 

  • A disappointing or frustrating situation or event. 

  • A pub. 

  • A toilet or urinal. 

  • An extremely amusing person or thing. 

  • One who pisses. 

  • Synonym of piss clam 

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