Speak with criminal slang,

from Nas – It Ain't Hard to Tell Lyrics on Rap Genius

Meaning

Many East Coast rappers at this time, such as The Wu-Tang Clan, Jay Z, and Mobb Deep and Nas himself heavily incorporated slang used by local drug dealers in their rap lyrics. This line was actually sampled in the hook to Big L’s song “Ebonics”, a track that further broke down hip-hop slang.

http://screencast.com/t/zOiAkcARNm

To help improve the meaning of these lyrics, visit “It Ain't Hard to Tell” by Nas Lyrics and leave a comment on the lyrics box