鯉口 こいぐち Also written こいくち Meanings Noun opening of a scabbard; mouth of a sword sheath style of shirt with carp-mouth shaped sleeves Kanji 鯉 carp. Read as こい. 口 mouth. Read as くち. Words containing 鯉口 鯉口を切る (こいぐちをきる) to loosen one's sword slightly in the scabbard Jinuma: Japanese Dictionary · Word lists