Shotgunning is a means of consuming a canned beverage, especially beer, very quickly by punching a hole in the side of the can. With this method, it is possible to easily drink a canned beverage in under 10 seconds.
To shotgun a beverage, a small hole is punched in the side of the can, close to the bottom. In order to prevent the liquid from spilling out while the cut is made, the can is held horizontally, tilted slightly, and the hole is made in the resulting air pocket. The hole can be made with any sharp object (usually a key, bottle opener, pen, knife, other sharp instrument, or possibly teeth or a thumb with enough experience).
The drinker then places his or her mouth over the hole while rotating the can straight up. When the can's tab is pulled, the liquid will quickly drain through the hole into the drinker's mouth.