When the snowplows would push snow off the road in the winter and make big piles, we'd all climb the "mountain" and whoever was on top would be "king." The goal was to knock the king off and take his place, or just throw anybody close to you off the "mountain" with as much strength as you can muster.
We used it when I was in school (back in the 90s), and we use it right here in the good ol' US of A., This game was always alot of fun, although the teachers hated us to play it because every two minutes someone was rushed in to the nurse with a bloody nose or a bruise or any number of other horrible afflictions.