an American dance, popular in the late 1920s, marked by emphatic, sinuous movements of the hips.
Origin of black bottom
An Americanism dating back to 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for black bottom
a dance of the late 1920s that originated in America, involving a sinuous rotation of the hips
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012