A Youtube video with significantly more dislikes than likes. This creates a likes/dislikes bar with a short green bar with a longer red bar, resembling a lightsaber with a green handle and red plasma blade.
Person #1: Have you seen that music video Friday?
Person #2: Nope, I don't watch red lightsabers.
A term used when a girl of non african decent, usually white, dates a person of african decent. Meaning that she "has gone to the dark side" thus uses a red light saber like in Star Wars. In other words a black mans penis.
Hey dude, I heard Betty likes the red light saber.