What does Arab on the windshield mean?

Arab on the windshield meaning in Urban Dictionary

A moment during a movie when a stupid, childish artistic laugh is placed into a somewhat really serious scene, the removal of the suspension of disbelief and tarnishing the scene (and sometimes the movie), rendering that segment very nearly unwatchable. Origin: Through the film "Raiders of this Lost Ark." Through the vehicle chase scene, Indiana Jones and a Nazi are battling for control of the truck holding the Ark whenever truck crashes through an irrigation system. The effect is a tremendously surprised Arab on the bonnet associated with vehicle, looking at Indy as well as the Nazi from the incorrect region of the windshield.