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.