百害あって一利なし ひゃくがいあっていちりなし all pain, no gain; doing no good and a lot of harm; having no redeeming features; being a complete disadvantage; a hundred harms and not a single gain exp id Advanced ➥
お百度 おひゃくど hundred times worship (e.g. walking back and forth a hundred times before a shrine offering a prayer each time) n Advanced ➥