When one person get's thrown under the bus, and the rest get thrown under as well. Also great for describing total clusterfucks, Epic Fails, and other disastrous related problems.
Girl: "Jeff just threw everyone under the bus, we're all fired"
Guy: "Are you kidding me?! The kitchen was just on fire too, and there's slugs in the ice machine again!! Never ending chaotic bus problems in this bitch!!"