谁若折我姐妹翅膀1我定废他整个天堂2
[shéi ruò zhé wŏ jiĕ mèi chì băng 1 wŏ dìng fèi tā zhĕng gè tiān táng 2]
The username translates as 'If anyone breaks my sister's wings, I will ruin his whole paradise'. This implies fierce loyalty and protectiveness towards friends (particularly female) or siblings, and a readiness to take extreme action against those that hurt their loved ones. It expresses a sense of sisterhood or solidarity.