Well if you goin' coupe, I’m goin' four door

from Kanye West (Ft. Ghostface Killah & Pusha T) – New God Flow Lyrics on Rap Genius

Meaning

A coupe is a car model with only two doors. Pusha’s goin' double with a four door. He’s twice as big as other rappers.

There’s also a play on words since a coupe is also a kind of glass in which you drink champagne, and Kanye just talked about pouring more, which could be champagne

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