How to Do the upside down coffee cup office prank

Watch this video to learn this funny prank to play on your friends. This is highly recommend for college kids. It's good to use in the office on a coworker, your boss, or on your roommate. This is a very simple and highly effective prank. Use this as inspiration for one of your April Fools Day pranks!

7 Comments

wow that is cool but how do you do it

It's a really common science trick. I think it has something to do with water tension and pulling a vacuum in the bottom of the cup.

DUeDE 2wo mutch sience stuf!

that's cool U rock dude

so prankalicious it gets my dick hard *strokes*

in order for the coffee to leave the cup it needs to be replaced by something else like air for example, but the paper does not alow the air to get into the cup so the coffee can not be displaced

well you are all wrong. The guy creates a vaccum with the paper and theliquid when he taps the paper that is on top of the cup. that way when the liquid tries to escape it cannot go anywhere.

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