butt-chug

Verb

butt chug (third-person singular simple present butt chugs, present participle butt chugging, simple past and past participle butt chugged)

1. (slang) To consume alcohol via the anus, leading to rapid intoxication.
   • Upon extensive questioning it is believed that members of the fraternity were utilizing rubber tubing inserted into their rectums as a conduit for alcohol […] The act of getting wasted in that way is also referred to as "butt chugging," "alcohol enema" and, well, "completely idiotic."2012 September 26, Jenna Johnson, “Tennessee frat guys”, in The Washington Post

See all 2 meanings of butt chug