It's Big Willie, I came through with them cats from Philly
Jay shouts out Philadelphia, one of the stops on his long journey from New Orleans to New York (also mentioned in Exhibit C).
Big Willie is a 90’s term for a person who’s “Ballin”, rich, or doing it big. Here it’s also a nod to Philly’s favourite pop rapper Will Smith, who killed off the phrase with his album Big Willie Style.
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