Okay kiddo, so you know that bad people sometimes use guns to hurt other people, right? Well, sometimes these bad people drive around in a car when they do it, and that's called a drive-by shooting.
So, imagine you're playing outside with your friends, and suddenly a car drives by really fast and someone in the car starts shooting a gun. They don't stop to talk or to ask for help, they just drive away. It's usually a surprise and can be very scary.
Drive-by shootings are very dangerous and can hurt innocent people who were just in the wrong place at the wrong time. That's why it's important to stay away from any dangerous situations and call for help if you need it.