In the fighter control branch of the Royal Air Force we have a similar drink used for an initiation (with the individual's permission, of course!). It is known as the chocolate spider.

Officers drink this revolting potion upon receiving their certificate of qualification as a Fighter Controller. It consists of a dirty pint containing as many as 10 different shots of spirit, with a mars bar added into the pint for extra joy. The officer(s) (it is usually run as a competition) stand on a stool, with a bucket close at hand, and have to down the pint and eat the mars bar without taking the glass away from their mouth. NOT easy.

My chocolate spider contained Bells, Jack Daniels, sambuca, tequila, vodka, red aftershock, blue aftershock and John Smiths bitter. As someone who rarely eats chocolate I felt ill because of the mars bar more than anything else. My speech was fairly lucid and short. The guy to my left, however, was badly affected and his speech rambled on for 5 minutes before he projectile vomited into his bucket.

NOT for the faint-hearted!