That's genious! Allthough it doesn't make sense that it's reversed. Why would he throw away that many beers and as "Nice story bra" makes a point with; "Why whould they creat a machine that drains beer out of cups?" And then put the 'used' cups back in the row....
It is a suction tab that gets pushed up and seals after beer is in it.
plus, why would they create a machine that drains beer out of cups? think bro
http://www.wired.com/gadgetlab/2010/12/how-it-works-beer-dispenser-fills-glass-from-bottom/ There you go.
Watch it in reverse and maybe you'll figure out how they did it :P http://playgif.com/8889#reverse
use the knowledge of that brain the universe gave you, the woman in the back is brushing her hand through her hair, this time look at it in reverse, her actions are weird and so are his.
Stripper falls off stage
Guy doing backflip almost hit by car
Paper sculpture
Ninja lemur bounces off walls
Hanging clothes by throwing hangers
House wall falls over Buster Keaton (Steamboat Bill, jr.)
Soccer freestyler Sean Garnier dressed as old man
Skiing jump high-five
Baby leopard huge jump
Marty McFly on hoverboard costume