我凉拌爱自己
[wŏ liáng bàn ài zì jĭ]
'Love Myself with Coolness' - It suggests a somewhat nonchalant attitude towards oneself. The term '凉拌' originally means mixing up food cold, here it implies doing things indifferently or in a casual way. So, the whole nickname might express that one loves themselves in an unconventional manner, which may include self-confidence and uniqueness.