2587590 jmdict A [id=2152336] 暗穴;闇穴 あんけつ [1][n] dark hole [2][n] idiot; fool [3][n][hist,abbr] road taken by a Chinese ajari buddhist monk when he incurred the wrath of emperor Genso (685-762) [see=2587580・闇穴道[1]]