behaving in a way that suggests that you think you are more important than other people 大模大样的；自命不凡的 More Like This Reduplicative wordsReduplicative wordsWord Originmid 17th cent. (as noun in the sense ‘boisterous or silly behaviour’, then as adjective meaning ‘lively and playful’): from obsolete hoit ‘indulge in riotous mirth’, of unknown origin.