behaviour by men that shows they are very proud of their appearance, for example wearing clothes that make people notice them

Peacocking is something men do to highlight their strong points and stand out from their competition. 男人们为了凸显自己的优点并且在竞争中脱颖而出会格外注意修饰自己的仪表和衣装。

Once upon a time any peacocking would have been for my benefit. 曾几何时，男人们会为了我修饰打理自己的仪容。