Who: Anyone who has access to Zebul common room (which is basically everyone since the doors will be opening and closing from people coming and going all night)
What: After match party
When: Straight after the match.
Where: Zebul Common Room
Rating: Rate accordingly. :) [Prefects will probably close one eye to any rule-breaking since everyone's just celebrating and too happy to be entirely sane. But use your own discretion!]
Notes: No particular posting order. Just have fun!