When someone is black out drunk and takes a half full beer bottle and pushes the bottle into their rectum. They then proceed to tip the bottle upside down, poring beer into their rectum and lower intestine. They pull the bottle out and spray the surrounding party-goers with shitty beer.
Ben: "Hey Doug, beer-shoot these girls".

Doug proceeds to do a beer-shooter.

Doug: "Those girls deserved that shitty beer".

Ben: "That was a hell a of a spray bro".
Get the beer-shooter mug.