1. A passenger in a car that uses his time to photograph one Highway Hazard after another. This is typically done with a cellphone and with the intent to display the images of Highway Hazards publicly.
2. Someone who exposes Highway Hazards with photographic evidence in order to shame them off the highway.
1. Man, I love the fact that my carpool buddy can't stand being a passenger. That means I get to be Passenger Paparazzi and catch all those jackasses on film.
2. Hey if we get enough carpools going to have a fleet of Passenger Paparazzi's, maybe we can expose these turds for the hazards they really are!