你若过的凄凉我定笑的猖狂
[nĭ ruò guò de qī liáng wŏ dìng xiào de chāng kuáng]
It translates to 'If your life is desolate, I will laugh wildly'. This suggests a contrast: if one leads a hard or gloomy life, another chooses a different attitude to face it – being carefree or even cynical. There may be a certain rebellious nature within.