Hiccups

A hiccup or hiccough (pronounced /ˈhɪkʌp/ HICK-up) is a contraction of the diaphragm that repeats several times per minute.

In humans, the abrupt rush of air into the lungs causes the vocal cords to close, creating a "hic" sound.
In medicine it is known as synchronous diaphragmatic flutter (SDF), or singultus, from the Latin singult, "the act of catching one's breath while sobbing".
The hiccup is an involuntary action involving a reflex arc.
A bout of hiccups, in general, resolves itself without intervention, although many home remedies claim to shorten the duration. Medical treatment is occasionally necessary in cases of chronic hiccups.