桶孔 Traditional form: 桶孔 Pinyin (reading): tǒngkǒng Definitions: bunghole Characters: 桶 - bucket, pail, tub; can, cask, keg 孔 - opening, hole, orifice; great Traditional characters: 桶 - bucket, pail, tub; can, cask, keg 孔 - opening, hole, orifice; great