Smell the scent of dead bodies ridin' down Green Leaf
No peace so don't get caught up with no piece

from Game (Ft. Kendrick Lamar & Tank) – See No Evil Lyrics on Rap Genius

Meaning

The street “Green Leaf” in Compton is notorious for being the place where people go to drop off dead bodies. If you killed someone and needed a place to dispose of the body, you would take it to Green Leaf as it would be left to rot without being noticed for a while.
Since there is no peace in Compton, there is always a state of war. You can’t be caught without a “piece” or a gun if you want to survive.
By “piece” he could also refer to a ‘Jesus piece,’ as you will need protection from above to make it out intact.

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