Parents, don't be fooled when your teen says they're going to hang out with the girl or boy next door to "Netflix and chill ." As these unsuspecting grandparents found out, it's not as innocent as it sounds.

In this hilarious YouTube video, three grandparents were asked to define the popular phrase . All we have to say is this: "Netflix and chill" isn't really about the movie at all.

Check out their hysterical reactions when they find out that the "chill" part has nothing to do with "being cool.'