Definition from Wiktionary, the free dictionary
From Greek βορβορυγμος.
borborigmus (plural borborigmi)
- A rumbling sound made by the movement of gas in the intestines.
- 1973: chilli 'n' trepidation were playing the devil with my small intestines and my borborigmus was often louder than the engine of the Rolls — Kyril Bonfiglioli, Don't Point That Thing at Me (Penguin 2001, p. 94)