And they say: "how do you survive weighing 165
In a city where the skinny niggas die?"

from 2Pac – Str8 Ballin' Lyrics on Rap Genius

Meaning

As he explained above, if you are skinny, you survive by getting a gun and killing someone, for credibility

2nd time Pac has reminded us how skinny he is in the song btw (he sounds like my girlfriend)

Also, 165 is not thaat skinny..

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