In all seriousness though - Zui quan is not related to any particular beverage. You don't even need to drink to do it (in fact, it's better if you don't drink). The idea of Zui quan is to mimic the unpredictable movements and relaxed state that is typically associated with being intoxicated. In truth, the practitioner is highly alert, well balanced and primed to engage - qualities that diminish with alcohol consumption.
How do you mean? I'm pretty sure most people don't actually do drunken forms drunk... But since it's Chinese, I guess some kind of rice wine?
