I'm pretty sure hiccups are natures way of telling us to stop being fat drunks.

Also, the cure is to hyperventilate and then hold your breath for as long as your possibly can. 60% of the time it works every time.

I remember Oktoberfest when I was 13 in Kitchener, Ontario at my girlfriend's mom's apartment... There was a drunk chick trying to buzz herself in and she did NOT stop hiccupping... really left an impression... I think it's mostly people who drink a lot of beer and sudzy drinks but man I wont forget her hiccup fits. I drink quite a bit but I don't hiccup... I think it's beer drinking that does it. I'm a Vodka dude.