Originally Posted by After Shock Media

I honestly find that if you grasp the tip of your tongue between your thumb and index finger and gently pull your tongue out until you feel that area underneath your tongue beginning to stretch - then hold it like that for a slow mental count to 20. (your tongue is pretty slick so have dry fingers if possible or use a latex glove - I have tons so I use them for almost everything)

They will be gone. You are actually stretching the muscle that is having contractions and thus causing the hiccups. Though your tongue will feel a bit weird briefly afterwards.