big head
自大、自负、傲慢
口语·形容人因成功而变得自大
英文释义
an exaggerated sense of one's own importance or abilities
例句
After winning the award, he got a big head and stopped talking to his old friends.
典故来源
源自19世纪美国俚语，'head'指头脑，'big head'比喻膨胀的自我意识。