thunder run vs thunderbox

thunder run

noun
  • Synonym of thunderbox (“device for creating a thunder sound effect”) 

  • A quick surprise penetration attack deep into enemy territory, designed to confuse and potentially break enemy lines. 

thunderbox

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

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

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

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