Get you 3,4 get you
Like the number after 1, I'mma get me 2
Wayne’s likely stating that he’s on the third verse, that he’ll “4 get” you, and that he’s going to get himself what he needs. The last section could also be a pun on thousands of things that come in pairs or twos — boobs, grams of the various drugs he loves, drinks, etc.
To help improve the meaning of these lyrics, visit "You Ain't Got Nuthin'" by Lil Wayne (Ft. Fabolous & Juelz Santana) Lyrics 3 and leave a comment on the lyrics box