A device used for the purpose of administering an alcoholic beverage into the anus.
Can refer to a Guinn Box, a bicycle pump, or any other device fitting the above criteria.
Joe: Hey Tim, can I borrow your bicycle pump for a few minutes?
Tim: Sure thing pal! Planning an evening of butt-chugging I see? Have a good time and be safe!
Joe: Thanks guy, I'll have your BCD back in no time.
Acronym pertaining to the 4 piece power pop group "Big City Dreams." Their "jams" are known to induce an overwhelming sense of "rock" to flow through the veins, as well as involuntarily drop the undergarments of the female sex.