If you got that from Google's snippet, it's a bad snippet. Scrolljacking is short for "scroll hijacking" and can mean screwing with the browser's default (which

If you got that from Google's snippet, it's a bad snippet. Scrolljacking is short for "scroll hijacking" and can mean screwing with the browser's default (which we can assume to be user's preferred, or at least expected) scrolling behavior in any number of ways.