Def: This is an uneven bars release move that is essentially full twisting Gienger, which makes it a back 1&1/2 twisting somersault release move. The originator of the skill was French gymnast, Jacques Def. In women’s gymnastics, Snejana Hristakieva was the first gymnast to do the skill in 1992. Even in women’s gymnastics, though, this skill is commonly called a Def (so much easier and quicker to say than Hristakieva).
This syndicated photo originally appears at GymnasticsGifs
The Def Club
A video collection of all the gymnasts who have done the Def release move up through 2009.