Peachfuzz buzz but beard on the verge
When this song was released, Lupe was still a fairly new rapper but he produced some buzz (hype) with his evident talent. The analogy is that his buzz is inevitably going to grow, sooner rather than later.
Additionally, at this point Lupe had a buzz cut and a peach fuzz resembling beard and moustache.
To help improve the meaning of these lyrics, visit "Touch the Sky" by Kanye West (Ft. Lupe Fiasco) Lyrics and leave a comment on the lyrics box