An acronym used in place of the phrase "Cool, but I don't care" or (cool story bro). Most commonly found in texting situations where one still wants to be condescending, however lacks the will or energy to type out a full response to said unrelated or stupid thing someone has sent to a group text or one on one chat.
Guy 1: "Dude, I just got the high score in my favorite pin ball machine last night! Lemme tell yah, shit was so awesome!"
Guy 2: "CBIDC"
Guy 2: "CBIDC"
by Swig621 November 11, 2020