he's double-jointed
1double-jointed — adj able to move the joints in your fingers, arms etc backwards as well as forwards …
2double-jointed — adjective able to bend your JOINTS (=parts of your body where two bones meet) backward as well as forward …
3double-jointed — ► ADJECTIVE ▪ (of a person) having unusually flexible joints …
4double-jointed — [dub′əljoint΄id] adj. having joints that permit limbs, fingers, etc. to bend at other than the usual angles …
5double-jointed — dou·ble joint·ed .dəb əl jȯint əd adj having a joint that permits an exceptional degree of freedom of motion of the parts joined <a double jointed athlete highly susceptible to injury> …
6double-jointed — adjective (of a person) having unusually flexible joints. Derivatives double jointedness noun …
7double-jointed — adjective Date: circa 1820 having a joint that permits an exceptional degree of freedom of motion of the parts joined …
8double-jointed — /dub euhl joyn tid/, adj. (of particular people or animals) having unusually flexible joints that can bend in unusual ways or to abnormally great extent. [1825 35] * * * …
9double-jointed — adjective Possessing hypermobility of the joints …
10double jointed — adj. very flexible, having joints that are exceptionally flexible and can be bent in the opposite direction to the normal one …
