病變

'病变' (Bingbian) in Chinese usually refers to pathological changes or abnormalities that occur in a body or system. It's often used in medical contexts but can also metaphorically refer to negative changes or developments in other areas. Choosing this as a nickname might symbolize that the person has experienced some significant and perhaps unhealthy changes in life or personality, or it might just be chosen for its unique and somewhat rebellious connotation.