double-jointed

[ duhb-uh l-join-tid ]

/ ˈdʌb əlˈdʒɔɪn tɪd /

(of particular people or animals) having unusually flexible joints that can bend in unusual ways or to abnormally great extent.

Origin of double-jointed

First recorded in 1825–35

It used to hurt the Friar to hear some o the double-jointed swear words we used when excited.

Friar Tuck |Robert Alexander Wason
A double-jointed word slipped between his teeth, which sounded like "Hang that boy!"

The Surprising Adventures of Sir Toady Lion With Those of General Napoleon Smith |S. R. Crockett
So away he went, as fast as he could, taking his double-jointed tail with him.

Jacko and Jumpo Kinkytail |Howard R. Garis
He had the reputation of being "double-jointed," whatever may be meant by that term.

Yorkshire Oddities, Incidents and Strange Events |S. Baring-Gould

"I'll receive him," said Sir Peter, "with a musical salute," And he gave some imitations of a double-jointed flute.

The Book of Humorous Verse |Various

double-jointed

having unusually flexible joints permitting an abnormal degree of motion of the parts

double-jointed

Having unusually flexible joints, especially of the limbs or fingers.