How sway

"How Sway" is Kanye West's response to something DJ Sway said although no one can remember now what that was. But everyone remembers the response. Maybe it was because the words flowed so well, "How Sway?" That's it. That's all. And now it's an iconic response to someone stating the impossible or just a cool thing to say.

Me: "It's my birthday today!" Cool Cat response: "How swaaay..." (How sway)