A couple of reasons why this video is funny:
How they open it, Whats up BROhams?
Punchy it just sounds funny.
All these characters are funny looking. Faked in a goodway, you know there fake, so lets go overboard, kinda like porn.
“Its like he dosent know, its like turrets.” That makes you feel sorry for him.
The girl goes face down into the cooler, spilling all the beer.