The drinking that starts before a celebration or an occassion. It usually involves a hardcore group who pride themselves on the amount of alcohol that they can consume.

It could be a few hours early or the day before, usually used as an excuse to women!
Girlfriend: Why have you guys started drinking already? It's 11 in the morning!

Guy: It's the Pre-drink drinks for my birthday, we're just warming up!
by x100jon December 18, 2008
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