他弟你哥要我做你嫂子
[tā dì nĭ gē yào wŏ zuò nĭ săo zi]
This username translates to 'His younger brother, your older brother wants me to be your sister-in-law'. It suggests a close or joking family connection between the user and the people addressed. This kind of name often plays on familial terms in an affectionate or humorous way.