ululu
An auspicious cry uttered by Indian women on festive occasions.
The use of Ululu […] as an auspicious sound is not only made by the women of Bengal, but also by the women of Orissa till to-day on festive occasions.
Where it comes from
Onomatopoeic. Not related to ululate, ululative, or ululation.
Adapted from the Wiktionary entry ululu (CC BY-SA 4.0).