拿着青春去喂狗
[ná zhe qīng chūn qù wèi gŏu]
Spending Youth Feeding Dogs: On the surface, this username sounds peculiar. But metaphorically, it expresses the speaker's regret and dissatisfaction towards wasting precious time (youth) on insignificant or even harmful pursuits. The dog in this idiom represents things or people that were not worthy of such commitment.