Mommy Bar
n. That Infuriating handle above the door that is widely believed to provide stability and security in a moving vehicle. Generally used by mothers in the passenger seat who are convinced that they gave birth to their deaths in vehicular manslaughter form. Regardless of how skilled a driver you are, your mother will always make it seem like you just took a screeching U-turn at 45mph.
He looked over and saw her clutching the mommy bar and decided to give her a reason to. The news that night: man causes 15 car pile-up, comes out of the wreckage screeching curses about a "mommy bar" of some sort.