Is There a Definition of Fun?

We don't have a precise, agreed upon definition of fun. This leaves us vulnerable to any company or person who wants to try to sell us their product or service as fun. If you really reflect on how you feel after you spend an hour expollnd though social media, wou probably aren't going to say that was fun. That's why i came up with this term fake fun,. It becomes a lot easier to eliminate the sources of fake fun into not being manipulated if you can give it a name.