Noun
(slang) A chamber pot enclosed in a box; a portable commode.
Synonyms: (historical) close-stool; see also Thesaurus:chamber pot
(by extension, chiefly Australia, Britain, slang) Any lavatory or toilet, especially a rudimentary outdoor latrine or toilet, or an outhouse.
(outhouse): Synonyms: see Thesaurus:bathroom, Thesaurus:toilet
(theater) A box of metal balls which is shaken to create a thunder sound effect.
Synonym: thunder run
thunderbox (plural thunderboxes)
(military, obsolete) A blunderbuss; also, a cannon.