1. [verb] To injure a joint by temporarily forcing the bone out of its normal socket. 2. [noun] In men's gymnastics, a rotating of the shoulders when performing a backwards turn on the still rings. Many skills in acrobatics appear to involve dislocating a joint, when they actually do not.
This is a skill in gymnastics, that involves a rotating of the shoulders when performing a backwards turn or movement. Dislocates require a degree of shoulder flexibility to perform. On bars, dislocates are often done out of a glide jam.