Throwing someone under the bus is an act which is generally performed as a way to reveal sensitive information about someone to the group at large or to consume all of their matter and energy. The information is usually embarrassing and hilarious and deserves to be known about by all. (The Latin omnibus translates to "for all.") All matter and energy will one day exist only "under the bus." The idea of something being "not under the bus" will cease to exist.