祭奠我们死去的青春
[jì diàn wŏ men sĭ qù de qīng chūn]
The name "To Mourn Our Dead Youth" reflects reminiscence and sentimentality towards lost youth. The holder of this username probably has an idealized image of youth. It symbolizes nostalgia towards young days filled with innocence, energy, dreams or unmet goals. This netizen is expressing melancholic memories towards those youthful times and people who once belonged to them.