It all has to do with your diaphragm. Hiccups are a spasm in the diaphragm and smoking Herb cures it. That and sticking a pencil between your lips, holding your nose (and if there's a second party, your ears), and drinking the water until it feels like you're gonna die and then you pour some more down your throat, dump the water in the sink, and, by the time you're done huffing and puffing, your hiccups are gone.

I had the hiccups for three days, once. During which, I had a baseball game and had to play shortstop with the hiccups. I was kicked out of the game (possibly from frustration from the hiccups) and had to sit on the bus, with the hiccups.

On the ride home from the game, my teammates helped me concoct that cure. And it's sure-fire.