有种小情绪那叫委屈的东西
[yŏu zhŏng xiăo qíng xù nèi jiào wĕi qū de dōng xī]
This nickname means 'There's a little mood that's called委屈(which means aggrieved). Here, it conveys a feeling of mild grievance or being wronged. In a humorous way, it describes those slight, subtle feelings people get when they feel unfairly treated.