[Syne4]

Hello!
I remember that I've seen around an year or too ago a movie on TV, but only one scene from it.
My sister seen it too and she really wants to see the rest of it.
That's what we remember:
There were a boy and a girl, and the girl convinced the boy to take his clothes off except for his underwear and tied him to a pillar.
Then some of her friends came in, one of them slapped him and said something like "Who's the ***** now?", and then all of the girls started to throw and kick sand & earth at him.
The next day that boy tried to hang himself up at the first girl's garden, she had some sort of a playground there, and he tried to hang himself up on one of the facilities.
Some people found him and took him down before he died.
We don't remember any more...
Please help us find that movie.
Thanks!

P.S - My sister sais she thinks the whole tying-up-sand-kicking scene was in some sort of a farm house.