And I don't know how fake feels, so I gotta keep it real

from Lil Wayne (Ft. Drake, Gudda Gudda, Jae Millz & Mack Maine) – Every Girl Lyrics on Rap Genius

Meaning

Millz only knows real, so he has to keep it real all the time.
Also, he needs a real girl.

This could also be a reference to a physically real girl (someone with no plastic surgery done).

To help improve the meaning of these lyrics, visit “Every Girl” by Lil Wayne (Ft. Drake, Gudda Gudda, Jae Millz & Mack Maine) Lyrics and leave a comment on the lyrics box