I guess it depends on who is defining what fun is. When it is me defining it, then obviously I don't have a problem with it.
Interesting how the word "funny" is so close, and yet pointed towards only one aspect of "fun" - humor.
I remember one day we had decided to go to a rock concert that started out as a kind of misery. It was a sweltering hot day and we were sitting there in it, after having been ushered in like a herd of cattle. The groups were not due to arrive for awhile, but we wanted to be able to get seats that were reasonably close and so we had come as early as we did. Finally an opening act came on, and their first number was an old Sam Cooke tune that begins "We're having a party..." and I felt that same thing you guys were talking about earlier, where people were attempting to convince us that we were "having fun." Eventually we did, though. ( Have fun. )