疯疯癫癫只为祭奠青春
[fēng fēng diān diān zhĭ wéi jì diàn qīng chūn]
This translates as 'crazy and mad, only to mourn youth'. It expresses an idea of letting loose and acting out as a form of tribute or celebration of youth, implying an indulgence in wild behavior while acknowledging its fleeting nature.