I keep a blue flag hanging out my backside
But only on the left side, yeah that's the Crip side

from Snoop Dogg (Ft. Pharrell Williams) – Drop it Like it's Hot Lyrics on Rap Genius

Meaning

Snoop reps his gang the crips. The left side is the west coast. The blue flag (or bandanna) must hang folded from the top of the left rear pants pocket. This signifies his allegiance with the Crips. To hang from the right pocket would hold a different significance.

To help improve the meaning of these lyrics, visit “Drop it Like it's Hot” by Snoop Dogg (Ft. Pharrell Williams) Lyrics and leave a comment on the lyrics box