Kneed a. : Having knees;- used chiefly in composition; as, in-kneed; out-kneed; weak-kneed.

Kneed a. : Geniculated; forming an obtuse angle at the joints, like the knee when a little bent; as, kneed grass.

Example:
My brother Kneed me in the head and now both sides of my head hurt. How can I stop it from hurting?

Taxonomy
knee, Merriam-Webster Online Dictionary, human knee, Dictionary, webster, cypress knee, Word Games, Webster Online Dictionary with audio pronunciations, femur, tibia, four-footed, vertebrate, Middle English, Old English, glossary, english, language, ESL.

Defination from the web:
knee from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... 2 : something resembling the human knee: as a : a piece of timber naturally or artificially bent for use in supporting structures coming together ...