破四旧 Traditional form: 破四舊 Pinyin (reading): pòsìjiù Definitions: Destroy the Four Olds (campaign of the Cultural Revolution) Characters: 破 - to break, to rout; to ruin, to destroy 四 - four 旧 - old, ancient; former, past Traditional characters: 破 - to break, to rout; to ruin, to destroy 四 - four 舊 - old, ancient; former, past