港子你奥特了
[găng zi nĭ ào tè le]
This username is a playful mix of colloquial Chinese internet slang and cultural elements. '港子' (Gangzi) can be a nickname or a term for someone from Hong Kong or just a local term for a place or person, and '你奥特了' (ni autele) could imply that the person did something outstanding or unusual.