What is "jack-knifed"

Usage examples of "jack-knifed".

The muzzle of the Hanyatti caught him just under the breast-bone and I stood aside as he jack-knifed and fell to the floor.

Even as Smith watched, Carraciola seemed to rise effortlessly three feet into the air -- a feat of levitation directly attributable to the powerful boost given him by Thomas and Christiansen -- jack-knifed forward at hip level and flattened his body on top of the cable-car roof: his legs.

He made no sound at all, just jack-knifed forward in turn as convulsively as I had done, fell against me and slithered slowly to the floor.

One leaned on the pig’s rump in case she jack-knifed, another pulled back her head by those lolling ears.

He followed them with caterpillars that twisted and jack-knifed as they fell towards the paved ground.

As Isaac and Yagharek watched, it jack-knifed at its centre and seemed to kiss its own tail end, slowly relaxing until it hung deadweight again.

It sent waves of transforming current through thickly insulated cables, towards Andrej, who rolled and jack-knifed in spastic terror and pain.

Palms and back against one side of the chimney and stocking-soled feet against the other, Mallory jack-knifed his way upwards until the widening sheer of the walls defeated him.

For two or three seconds the Oberleutnant stood motionless in his tracks, his face shocked and contorted: then he jack-knifed violently forward and pitched down into the crusted snow.