(as) proud as a peacock
US /əz praʊd əz ə ˈpiːkɑk/
UK /əz praʊd əz ə ˈpiːkɑk/

1.
得意洋洋, 非常驕傲
very proud of oneself, often in a way that is considered arrogant or boastful
:
•
After winning the competition, he was as proud as a peacock.
贏得比賽後,他得意洋洋。
•
She walked onto the stage, as proud as a peacock, to accept her award.
她得意洋洋地走上舞台,接受她的獎項。