You know that sound your stomach makes when you’ve eaten too much? It now has a name: borborygmus.
It is produced by the movement of gas through the intestines. The word borborygmus is an onomatopoeia (a word that imitates the sound) for this rumbling.
The "rumble" or "growl" sometimes heard from the stomach is a normal part of digestion. It originates in the stomach or upper part of the small intestine as muscles contract to move food and digestive juices down the gastrointestinal tract and functions as a sort of intestinal "housecleaning".
