1. n. (military) acronym for "bad conduct discharge" as defined by the Uniform Code of Military Justice for US military servicemen, also known unofficially as the "Big
Chicken Dinner" as slang for the same discharge.
2. n. acronym for "buoyancy control device" used in
scuba diving, a vest that can be inflated or deflated while
underwater to control a diver's depth.
1. "Corporal Smith bashed Lieutenant Jones in the
fucking pie hole right in front of
the general. Stupid shitbird is gonna get his BCD for sure."
2. "Shit, my god-damn BCD has a hole in it. If I dive with this POS on, I'll sink right to
the bottom."