braggart

He is such a braggart that nobody wants to listen to his stories.

用法提示：名词braggart作表语，描述一种自夸的性格。

The office braggart always exaggerates his achievements.

用法提示：名词braggart作主语，指具体的人。

Braggarts often feel insecure deep down.

用法提示：复数形式braggarts作主语，泛指一类人。