Everyone has had hiccups. We find it difficult to tackle. Have you given a thought on how it happens.
Do you know why and what causes hicupps?
The reasons are one being When the air rushing in hits your voice box, your vocal cords closes all of a sudden.
Then, if something that irritates the diaphragm like eating too quickly or too much, a spicy treat leads to an irritation in the stomach or the throat which causes hiccups.
How could you stop it?
As you have seen in movies scare someone having hiccups... Yes it works.

Try this one... Bite on a lemon

If not then pull your tongue hard.. Its funny but works.

Have few glasses of water or gaggle with water.
Hope we learnt something different.