chamber pot; jerry
A portable container used as a toilet, typically kept in a bedroom. The term is somewhat old-fashioned and may be encountered in historical or rural contexts.
In old houses, a chamber pot was kept in the bedroom.
Compound of 肥 (こえ, 'manure, night soil') and 壺 (つぼ, 'pot, jar'). The exact historical derivation is uncertain, but the term straightforwardly describes a pot for collecting human waste.