boot dance
n.— «In order to truly explain step, one must first go back to its origin, during the time of slavery in which slaves developed what is known as a “boot dance” to communicate with each other as well as to honor their native tribal dances from Africa. The call-and-answer format of the dance helped the slaves share important information.» —“Step’s roots reach deep in U.S. history” by Jessica Matthews Poughkeepsie Journal (N.Y.) Feb. 18, 2006. (source: Double-Tongued Dictionary)