上课铃麻烦换成中毒
[shàng kè líng má fán huàn chéng zhōng dú]
This nickname humorously expresses a student's frustration or deep connection with a certain song, 'Duangduangbu', by wishing the school bell be replaced with it. This indicates that the music has had such an impact that they prefer hearing it over a regular class bell.