We used to take a beer can, pop the top, stick it over our mouth - then someone would stick an ice pick in the bottom of the can.
The beer would come out ~ 2,000 mph.
We called that "shotgunning".
I've also heard it referred to as "shooting a beer"...
One time before a Tom Petty concert a girl showed me how to "shotgun a beer" in a different way IIRC. We used a key to put a hole in the bottom of the can on the side, and had our mouth there, and then opened it. It was the same effect, but your version makes more sense.