And with no pen I'm sorta like a bomb "Boom"

from Lil Wayne – Georgia... Bush Lyrics on Rap Genius

Meaning

“Pen” is pronounced “pin” here. If you take the pin out of a grenade, it will explode. Wayne is bragging that his raps, which he doesn’t bother to write (with a pen), are explosive

To help improve the meaning of these lyrics, visit “Georgia... Bush” by Lil Wayne Lyrics and leave a comment on the lyrics box