Beer bong

The typical construction of a beer bong involves a large funnel connected to tubing.

It is for this reason the beer bong often engages the gag reflex.

Occasionally the pipe is inserted rectally[2] to administer an alcohol enema.

Called butt-chugging or boofing, this method of alcohol consumption can be dangerous or even deadly because it leads to faster intoxication since the alcohol is absorbed directly into the bloodstream and bypasses the body's ability to reject the toxin by vomiting.

[3] Beer bongs came to national attention in the US in 2006 after a photograph of Senator John Kerry being offered one by a University of Iowa journalism major at a tailgate party made national newspaper front pages.