grin, bear it, puke.
hope that the arteries in your brain don't explode.
lay there telling yourself over and over again how you'll never drink again.
cry, and then pray.
Gatoraid or pedialite after you can hold stuff down. If they have the spins, then laying down is no good at the moment. stay up and try and drink gatoraid. Eating something greasy is usually pretty helpful too (breakfast sandwich from mcdonald's or breakfast food like bacon, eggs, toast, etc...)