A TEASPOON OF SUGAR! Or hold your breath Or hang upside-down Or chug a glass of water Or watch that one episode of Max and Ruby Or flush the toilet, spin 2.5 times, wash your face with peanut butter, say a prayer, dance violently for exactly 8 seconds, play a D scale on a lute, play Pokemon Platinum until you catch a Swinub, and then of course make your friend jumpscare you.
small sips of water. they are because the fibrous hairlike things in you esophagus scilia i think they are called get turned up and caught under another one and you diaphragm convulses to correct it. so taking small sips if water helps it to wash up in there and fix it.
Sugar does not work even though it tastes good because actually a hiccup is a spasam in the stomach.To get rid of the hiccups your have to inmmate a hiccup or pretend that you are hiccuping twice before the next hiccup comes.trust me I've tried this is actually works,no joke.
A really good way that no one has thought about is drinking and breathing at the same time. It may sound weird and ridiculous but it really does work. First, take a sip breath in take a sip breath out take a sip breath in take a sip breath out do this for about 30 seconds to a minute and they WILL go away