B6GD
“Bravo six going dark” a phrases used by Captain John Price, from the game Call Of Duty: Modern Warfare. Bravo-six is the Captain's callsign. 'going dark' means that the operator is initiating radio silence. Basically used to tell people you’re going to ghost them.
When the classroom lights go off randomly:
Girls: OMG I CANT SEE
Boys: B6GD
Girls: OMG I CANT SEE
Boys: B6GD