A new version of the hot potato, in which you throw a stone and the idea is that it does not destroy your foot, of course this statement is a total joke.
Actually this game is quite silly and dangerous, especially for the example already given.
In which a rock of that size and weight can destroy your foot, a leg or even part of the body depending on the force of the launch.
Although it looks very funny and ends up being an entertaining gif, it shows that the weight of the rock was really enough to break the frozen ground and crack to the point of reaching the person who threw the rock at him and he fall to Water.
In these cold places, falling into the water can become a point where life puts itself in possible danger, needing soon to dry up and warm up after being exposed to the cold.