y'all Share definition Flag Fake word. Not a contraction. The phrase is "you all". Used by fake Southerners and Black wannabes. Hipster douchebag slang. Did y'all see that game where Giannis kicked ass? y'all by mbradleyc October 20, 2021 0 0 Get merch Get the y'all mug. Buy Now — $32.95 See more merch