noun; large numbers of fans agreeing to simultaneously turn off their lightsticks during a designated group or singer’s performance as a way of showing their dissatisfaction with said group/singer for any reason. Believed to have been first put into action during the 2008 Dream Concert with the formation of the CARTEL and the participation of the rest of the attending fans. Though generally done by fans to groups or singers outside of their own fandom, there have been cases when fans turn against their own members or group in reflection of turmoil within the fandom at the time.
adj.; a term used to describe the act of fans creating a Black Ocean
verb; to create a Black Ocean
Related terms: Hallyu Dream Concert, CARTEL, Oceans