らんか

爛 柯

  1. noun (common) (futsuumeishi)

    go (board game)
    formal or literary term

  2. noun (common) (futsuumeishi)

    being so engrossed in go that one loses track of time, being so engrossed in an activity that one loses track of time
    from a Chinese legend about a man who watches a game of go for so long that the handle of his axe rots away