Quick definitions from WordNet (hiccup)
▸ noun: (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion ("How do you cure the hiccups?")
▸ verb: breathe spasmodically, and make a sound ("When you have to hiccup, drink a glass of cold water")
▸ Also see hiccup
▸ noun: (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion ("How do you cure the hiccups?")
▸ verb: breathe spasmodically, and make a sound ("When you have to hiccup, drink a glass of cold water")
▸ Also see hiccup