show-off
英 [ˈʃəʊ ɒf]
美 [ˈʃoʊ ɔːf]
n. 爱炫耀的人; 喜欢卖弄的人
复数：show-offs
Collins.1
牛津词典
noun
- 爱炫耀的人；喜欢卖弄的人
a person who tries to impress other people by showing how good he or she is at doing sth
柯林斯词典
- 爱卖弄的人;爱炫耀的人
If you say that someone is ashow-off, you are criticizing them for trying to impress people by showing in a very obvious way what they can do or what they own.
英英释义
noun
- someone who deliberately behaves in such a way as to attract attention