I get the dough faster, what if I flowed faster
Like... oh Nancy the fo's plastic, automatic,

from Lil Wayne (Ft. Nicki Minaj) – Weezy Baby Lyrics on Rap Genius

Meaning

Lil Wayne is stating that he already gets money at a fast rate off his songs. Imagine how fast the money would come if he started rapping fast!

The next bar is jammed full of syllables and addresses his .44 caliber pistol (fo-fo) and what it’s made of

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