Behind them dirty plates like a catcher with a mitten

from Big Sean (Ft. Wale & Wiz Khalifa) – Life Should Go On Lyrics on Rap Genius

Meaning

He’s riding with dirty (illegal) license plates, so he’s behind dirty plates like a catcher behind home base.

To help improve the meaning of these lyrics, visit “Life Should Go On” by Big Sean (Ft. Wale & Wiz Khalifa) Lyrics and leave a comment on the lyrics box