I know you got a dick but use your head, bruh
Ab is telling you to stop thinking with your dick head, and start using the one on your shoulders. Play on words.
People claim that men only think with their penises and Soul is telling men to think instead with their minds.
This line also refers to the upper line, “Who could fuck with it?”, playing on the dick/head opposition like “don’t fuck with me or my music, please use your head.”
To help improve the meaning of these lyrics, visit "Cut From a Different Cloth" by Joe Budden (Ft. Ab-Soul) Lyrics 2 and leave a comment on the lyrics box