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1.
Similar to a beer bong, but the consumption of beer is rectally, using a funnel and tube to administer the beer as an enema. The primary purpose of butt chugging as opposed to drinking beer is that alcohol administered as an enema has 3x the effect of alcohol taken orally.
We dared my friend to butt chug his beer and when he did he got totally wasted!
by aasfasfasf asfasfas September 13, 2008
 
2.
The act of introducing any liquid or fluid by way of the rectum. An alternative to the more common way of oral intake in which any effects of the matter, usually alcohol, that has been reversely passed through the sphincter, is most likely to be felt much sooner an up to 3 times its usual potency.
Johnny was able to pass the police check point due to a last minute decision to buttchug his drinks for the evening thus leaving his breath smelling sweet and sober.
by Turbo Kwaz November 09, 2010
 
3.
verb: to shove a tube in your butt and chug beer or any other drink in an effort to get attetion
Joe: Dude i wanna do a butt chug
Bob: Did you just say you wanted to butt chug?
Joe: Ya man you should do it with me!
by naruto90121 April 02, 2010
 
4.
an extremely homosexual ritual performed by fraternity brothers on their new pledges in which beer is poured down one brothers ass crack and into the mouth of the eagerly awaiting pledge
I thought about joining their fraternity, but I found out that they do the buttchug and that was it for me.
by Johnny Tats June 18, 2008
 
5.
a person who drinks from someones ass.
did you see that chick buttchug that dude!
by Tristan Poirier November 27, 2007
 
6.
Means of imbibing an alcoholic beverage whereby the cleft of another’s buttocks serves as a sluice for the deposition of said refreshment in the recipient’s pie hole.
Such was Milo's ardor for Phyllis, the prospect of a butt chug charmed rather than repulsed.
by Billy Radcliffe May 11, 2006