Well kiddo, a gross-out film is a type of movie that tries to make you feel disgusted or sick. It's like when you eat something yucky and your tummy feels all twisty and turny. Gross-out movies show things that are really gross like people throwing up, pooping or doing nasty stuff like that. Sometimes they might even show things that are scary or bloody to make you feel uncomfortable.
But it's important to remember that these movies are just pretend and not real life. They're made to be silly and make people laugh, but not everyone likes them. So if you ever see a gross-out movie or anything else that makes you feel uncomfortable, it's okay to tell someone and turn it off.