Hospital Benefit?

I’m writing a fanfiction for House MD where one of the scenes are set in one of the infamous “hospital benefits”. Now, the problem is that I have no idea what happens during such a benefit, or if ‘benefit’ is even the right word. Is it mandatory for the employed doctors to attend? Are drinks being served? Is there any dancing involved? The only time a hospital benefit was shown on the show, it was a poker tournament, so I’m not sure at all of what to think.
Thanks in advance.