一条死在水里等待腐烂的鱼
[yī tiáo sĭ zài shuĭ lĭ dĕng dài fŭ làn de yú]
This nickname reflects a very gloomy and pessimistic mood. The person may feel they are in an unfavorable or dead-end situation, like a fish that has died despite being in the right environment (water), awaiting decay.