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.
Dude. Nikos, Gaurav, Oliv' and
Jahawi all did manchurian headstands
last night. After two shots of rum, they were all drunk off their asses.
Literally.