Too much fun
An intense amount of merriment, pleasure, play, gaiety that distracts from other, important things that are taking place. A cause of distraction.too much fun
Example:
sarah: happy birthday. dont have too much fun!
jane: obviously, you don't know what fun means *mischievously laughs*
sarah: happy birthday. dont have too much fun!
jane: obviously, you don't know what fun means *mischievously laughs*