used to refer to mistakes that are made when typing, usually because one finger hits two keys at the same time “胖手指”，打字错误（通常因一指同时击两键造成） The data was all wrong—it must have been a case of fat finger! 数据全错了——这一定是 “胖手指” 造成的！ The document was full of fat-finger mistakes. 文件中打字错误比比皆是。