You choke on something because you didn’t chew on it in a way that allowed you to digest it correctly. This symbolism can be a message about slowing down and participating fully with experience. The things that get trapped in the throat are usually representative of emotion as you ‘get choked up.’ Choking someone can show how you are stifling a part of your nature that this person represents. If the person is unknown, you are not aware of its importance. Think of an adjective you would use to describe the person (they were angry, they were saying something) this shows the part of you that you are not being allowed expression and integration.