KNOCK-KNEED • DICCIONARIO INGLES.COM • Definition of Knock-kneed

... attempt to pursue. At the side of the road, under the shade of a giant elm, he had brought the car to a halt and with his arms crossed upon the wheel sat motionless, following with frowning eyes the retreating figure of Jimmie. But the narrow-chested and knock-kneed boy staggering over the sun-baked asphalt no longer concerned him. It was not Jimmie, but the code preached by Jimmie, and not only preached but before his eyes put into practise, that interested him. The young man ...

— Somewhere in France • Richard Harding Davis