What is Car Surfing?
1.
A way to commit suicide by driving a car on a very busy highway/freeway/interstate at a very high speed, setting the car into cruise control and then climbing out of the car through the window and standing on top of the car as if the driver were surfing until the car hits something.
"Some dude in Arizona went car surfing on the freeway and killed himself."
See
2.
Driving fast, weaving in and out of traffic on a 4 lane or better road, trying to get ahead of the other cars, so you can get to where your trying to go faster.
I hate getting caught in slow traffic, so I usually end up car surfing away to spread myself out from the rest of the pack.
See