地獄ホゾ 地獄ほぞ 地獄枘 じごくホゾ 地獄ホゾ じごくほぞ 地獄ほぞ 地獄枘 noun (common) (futsuumeishi) architecture term foxtail wedged tenon joint blind tenon joint with wedges inserted into slots on its end ◄ ►