Oil pulling is a way of cleaning your mouth using oil. You take a spoonful of oil (like coconut or sunflower oil), put it in your mouth, and swish it around for a long time (like 10-20 minutes). This can help get rid of germs and bacteria in your mouth and make your teeth and gums healthier. When the time is up, you spit the oil out into the trash (not the sink), because it's not good for the pipes. Some people do this every day, but it's a good idea to talk to a grown-up (like your mom or dad) or a dentist first to make sure it's safe for you to try.