This is a friends attempt at the Straight Arm Challenge ending in hilarious failure. It isn’t one of those stupid challenges that will kill you just in its nature or anything.
It’s literally holding your arm straight with a drink of some sort, in this case a beer, over your head and trying to pour it in your mouth to drink it.
In theory this sounds super simple, but as you will see, it’s not. Feel free to share your attempts with your drink of choice. May I suggest water for the sake of mess clean up.