hiccup

v. make a hiccupping noise; suffer from an attack of hiccups (spasmodic inhalation accompanied by an abrupt sound)

n. involuntary spasms of the diaphragm and throat muscles accompanied by an abrupt sound

A hiccup or hiccough (normally pronounced "HICK-up" regardless of spelling) is an involuntary spasm of the diaphragm; typically this repeats several times a minute. The sudden rush of air into the lungs causes the epiglottis to close, creating the "hic" noise. A bout of hiccups generally resolves itself without intervention, although many home remedies are in circulation that claim to shorten the duration, and medication is occasionally necessary. By extension, the term "hiccup" is also used to describe a small and unrepeated aberration in an otherwise consistent pattern. The medical term is singultus.
See more at Wikipedia.org...

Hiccup /hic·cup/ sharp sound of inhalation with spasm of the glottis and diaphragm. hic·cup or hic·cough n. [more]Hiccup - Community and Resources

Noun
1. (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?"
(synonym) hiccough, singultus
(hypernym) symptom
(derivation) hiccough
(classification) plural, plural form
Verb
1. breathe spasmodically, and make a sound; "When you have to hiccup, drink a glass of cold water"
(synonym) hiccough
(hypernym) breathe, take a breath, respire, suspire
(derivation) hiccough, singultus

a brief market dip (why do we hiccup?)