Manchurian headstand

[Gregory]

The act of using a bottle as an [anal alcohol] injector. An empty glass bottle (usually a beer bottle) is lubricated at the neck (usually with [vaseline]) and a quantity of hard licor is poured into the bottle. The end of the bottle is then inserted into the anus, and the person does a [head-stand], or inclines the body, so that the alcohol flows into the rectum, where it will be absorbed more quickly, and effectively.