ELI5: Explain Like I'm 5

Choke-out

Okay, so imagine you have a balloon and you blow it up until it's really tight. Now imagine squeezing the neck of the balloon until the air can't come out anymore. That's kind of like what happens when someone puts pressure on your neck in a choke-out.

Your neck has blood vessels and nerves that go to your brain. When someone puts pressure on your neck, it can cut off the blood flow to your brain, which can make you pass out or go to sleep. It's like turning off the lights in your brain.

But don't worry, this is not a good thing to do to someone and it's very dangerous. People can get hurt if they're not careful and it's always best to leave this kind of stuff to trained professionals.