And all my niggas in the pen
from The Notorious B.I.G. (Ft. 2Pac, Big Daddy Kane, Scoob & Shyheim) – Hot 95 Freestyle Lyrics on Rap Genius
Meaning
Pen is short for penitentiary a.k.a. prison

This is a double-entendre too. He writes his raps with a pen, so he’s basically saying his homies are with him every bar he writes
To help improve the meaning of these lyrics, visit "Hot 95 Freestyle" by The Notorious B.I.G. (Ft. 2Pac, Big Daddy Kane, Scoob & Shyheim) Lyrics and leave a comment on the lyrics box