pisser vs thunderbox

pisser

noun
  • A toilet or urinal. 

  • That which pisses, particularly a penis. 

  • A disappointing or frustrating situation or event. 

  • A pub. 

  • An extremely amusing person or thing. 

  • One who pisses. 

  • Someone or something impressive or remarkable. 

  • Synonym of piss clam 

thunderbox

noun
  • Any lavatory or toilet, especially a rudimentary outdoor latrine or toilet, or an outhouse. 

  • A box of metal balls which is shaken to create a thunder sound effect. 

  • A chamber pot enclosed in a box; a portable commode. 

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