手ㄕㄡˇshǒu滑ㄏㄨㄚˊhuá

慣行其事，難以自制。宋·沈括《夢溪筆談·卷一○·人事二》：「諸公勸人主法外殺近臣，一時雖快意，不宜教手滑。」《通俗編·身體》：「武宗欲誅楊嗣復。李珏、杜景見李德裕曰：『天子年少，不宜手滑。』」

英to do sth by mistake (with one's hand), to make a slip of the hand (e.g. click the wrong button)