I'm just a little nigga, trying to be a civil nigga
30 years old, shit, that'll be a different nigga

from Lil Wayne – Fly Out Lyrics on Rap Genius

Meaning

He’s young (and small, hence the “Lil” qualifier) now and he’s trying to be (relatively) peaceful, but when he’s 30 and has more power, he will really fuck people up (or maybe he’ll be doing something totally different, like Americorps)

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