不爱笑的矫情者
[bù ài xiào de jiăo qíng zhĕ]
'Bu Ai Xiao De Jiao Qing Zhe' can be interpreted as 'The one who doesn't love to laugh and makes a fuss over trifles.' It describes a person who appears solemn, serious, or melancholy and also tends to complain about minor inconveniences. There may be a slight sarcastic or self-deprecating element in such an ID choice.