thunderbox

/TH AH1 N D ER0 B AA0 K S/
noun
  1. 1

    A close-stool, a stool enclosing a chamber pot.

  2. 2

    An outhouse or latrine: a rudimentary outdoor toilet.

  3. 3

    A box of metal balls used to create a thunder sound effect.

Synonyms

Source: https://en.wiktionary.org/wiki/thunderbox