rain dance

noun

(especially among American Indians) a ritualistic dance performed to bring rain.

Origin of rain dance

First recorded in 1925–30

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

While the tobacco was burning, the agile and athletic danced the rain-dance.
Myths of the Iroquois. (1883 N 02 / 1880-1881 (pages 47-116))
Erminnie A. Smith
One of the most usual of their dances, managed something like our ballets, is called the Rain-dance.
The Sunshade
Octave Uzanne