anal chugging

Done only be college students apparently...it is where a person takes the keg tube, shoves it up their butt, and turns it on, shooting beer into their colon....the lining of the colon is super absorbant, so they feel they will get more drunk in a shorter amount of time this way.
It is also believed that because they are not DRINKING the alcohol that they would be able to pass a breathalyzer test (they are wrong).

Apparently done at frat parties by "straight" guys.

One guy lies on the floor face up, another guy squats over
his face about 6 inches. Beer is then poured down the
squatting guy's back, running down over his butt crack, over the anus, and into the mouth of the guy lying on the
floor. Hmmmm....nutty....

A celebratory act performed mostly by sporst teams. One dude crouches on a table whilst another lies beneath him. A third pours beer down the ass crack of dude 1 into dude 2's mouth.

Whilst widley promoted as a standard appraoch to marking important sports victories, it should be noted that the anal chug is, in fact, primarily a method of satisfying deeply repressed homosexual urges in an exlusively male environment.