Knee-Necked

The act of a police officer placing their knee on the neck of a person restrained on the ground thereby cutting off oxygen. Knee-necking for prolonged periods results in the person on the ground losing consciousness and, in some cases, ceasing to breath.

Kyle: Did you see what happened to that guy in Minneapolis?
Roger: No man, what happened?
Kyle: The cops knee-necked him and he died.
Roger: Damn, that's messed up.