手滑

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

hand / (formal) to hold / person engaged in certain types of work / person skilled in certain types of work / personal(ly) / convenient / classifier for skill / CL:雙|双[shuang1],隻|只[zhi1]

surname Hua

to slip; to slide / slippery; smooth / sly; slippery; not to be trusted