N-COUNT. 柔术表演者;柔软杂技演员. A contortionist is someone who twists their body into strange and unnatural shapes and positions in order to entertain other people, for example in a circus. V-ERG. (使)变形;(使)成畸形;损毁…的外形. If something deforms a person's body or something else, it causes it to have an unnatural shape. In technical English, you can also say that the second thing deforms.