忽忽 Traditional form: 忽忽 Pinyin (reading): hūhū Definitions: fleeting (of quick passage time) in a flash distracted manner vacantly frustratedly Characters: 忽 - suddenly, abruptly; to neglect 忽 - suddenly, abruptly; to neglect Traditional characters: 忽 - suddenly, abruptly; to neglect 忽 - suddenly, abruptly; to neglect