所谓青春所谓怀念
[suŏ wèi qīng chūn suŏ wèi huái niàn]
This nickname translates to 'So-called Youth, So-called Nostalgia'. It evokes memories of a youthful period in one’s life which may be looked back on with bittersweet nostalgia. The name suggests someone reminiscing about their younger days.