Hand me a nine and I'll defeat foes
Double entendre time! First level is that “foes” are enemies for Nas to defeat with his 9mm gun, but second level is that in a New York accent, “foes” sounds like “fours”, slang for a .44 Magnum handgun, used by Dirty Harry — a larger caliber handgun than Nas' 9 mm.
If Nas can defeat 4s with 9s, he is a skilled shooter.
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