an acrobatic feat in which one bends backward from a standing position until one's hands touch the floor.
Origin of backbend
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a gymnastic exercise in which the trunk is bent backwards until the hands touch the floor
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