骨牌税 こっぱいぜい Meanings Noun playing card tax (i.e.: tax on playing cards, mahjong sets, domino sets, etc. (abolished in 1989)) See also: トランプ類税 (トランプるいぜい). Kanji 骨 bone. Read as コツ. 牌 label; signboard; medal. Read as ハイ. 税 tax. Read as ゼイ. Jinuma: Japanese Dictionary · Word lists