I lips poem, the same blocks where I made everything rock like Flintstones

from Lupe Fiasco – 1st & 15th Lyrics on Rap Genius

Meaning

Lupe spits Poetry, or he raps the same thing he did on the block.
Rock-double meaning
Drugs or made the block jam to his lines.

The Flintstones live in a rocky world in case you didn’t know

To help improve the meaning of these lyrics, visit “1st & 15th” by Lupe Fiasco Lyrics and leave a comment on the lyrics box