A process used by the very frugal as a way to bypass the liver and inject achohol as directly as possible into the blood stream.
The subject lays on their back and proceeds to roll on to the back of their neck so that their asshole is pointing directly in the air. The asshole is then gaped and alchohol is poured directly into the anus. The alchohol is then absorded through the rectal wall, directly into the blood stream.
Friend: "Wow you guys are so hammered! how much did you drink???"
Group: "Oh about 1 shot each... We dashound hot shotted them."
Friend: "You guys are fucked!"