Y'all need to step up y'all AV
AV can stand for audio visual. Jay-Z is saying you need to upgrade your TV and sound system.
AV can also be used as an abbreviation for average. So Hova is saying you need to improve your average, in other words get your money up.
Jay-Z is saying step up your AV your audio/visual: what you’re seeing and hearing in life. Or, how you speak and how people see or view you, your audio visuals.
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