If rap was a drink, you wine nigga, I'm all gin
from Ab-Soul (Ft. Black Hippy, Jay Rock, Kendrick Lamar & Schoolboy Q) – Black Lip Bastard (Remix) Lyrics on Rap Genius
Meaning
Jay Rock’s fucking with the hard rap, unlike the soft shit on the radio.
Example: A Wine Rapper

Wine = whine, get it?
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