I go in studio sessions and feel like a nerd
Cause I'm the only nigga there not smoking no herb

from Kendrick Lamar – H.O.C. Lyrics on Rap Genius

Meaning

When hes with his homies he feels like an outcast cause hes the only one not smoking weed.

To help improve the meaning of these lyrics, visit “H.O.C.” by Kendrick Lamar Lyrics and leave a comment on the lyrics box