He pronounces it like “west side” and in his video, even makes w’s with his hands.
Reminds me of G-Dragon’s Crayon: http://www.youtube.com/watch?v=t3ULhmadHkg, Koreans probably don’t know that he could be also saying “get your cray on” (cray = crazy).
In an episode of “Infinite Challlenge” — a popular Korean variety show — Psy lifts his arms up to reveal his sweaty armpits. Wet armpits = Wet Psy.
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