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.
literally means "to have sex in the kitchen" in dutch. But Dutch people always tell tourists that it means "hello" in dutch. It is a very commonly used expression, Dutch people being great fans of kitchen sex. Probably the second national sport after cycling.
Tourist entering a restaurant in the Netherlands:
"neuken in de keuken, could we have a table for two please"