繁花落尽满是觞
[fán huā luò jĭn măn shì shāng]
For the idiom-style nickname '繁花落尽满是觞', it could be interpreted as 'When all the flowers fade away, only wine cups (metaphorically, sadness) will be left behind'. It expresses nostalgia after prosperity has faded away, and may also refer to some regrets or melancholy after experiencing life changes. '觞' originally means cup which was used in ancient China.