Putting pressure on your diaphragm!
Do you spell them hiccups, or hiccoughs?
I quite prefer hiccups
In the movie Sleepless in Seattle, the mailman guy says "If you're having trouble sleeping, try drinking a glass of water from the other side," and Jonah corrects him and tells him that's for hiccups.
How the hell do you drink a glass of water from the other side? Rotate the cup 180°? Lean over it funny? idgi :(