Shotgunning liquids has been around for a while. It's the crude process of poking a hole in the bottom of a can (usually beer) so that you can drink whatever is inside the can way faster than normal.
It's a fun thing to do at a party for sure, but it gets old pretty quick, and there's never anything good lying around to make the hole in the can with. Using your finger to poke the hole raises things to a super-human level and is an unparalleled party trick for anyone who doesn't know that it's possible.
*****Shotgunning beers with your finger carries an inherent risk of injury and it's possible that your thumb could get cut as it pierces the wall of the can. While this has never happened to me, or anyone else I've seen try this, my brain tells me that it's certainly something to be aware of. Pierce responsibly and understand the risks involved of poking holes in metal cans with nothing more then your finger.*****