不美不瘦不高不白不用你爱
[bù mĕi bù shòu bù gāo bù bái bù yòng nĭ ài]
This means 'I'm not pretty, slim, tall, or fair-skinned, and you don't have to love me.' This nickname shows the user’s humility and self-deprecation. Also, it might suggest confidence and a self-ridiculous sense of humor.