carbanging

auto erotica (pleasuring ones self)

dude you took forever in the shower .
i know i was carbanging.

Carbangged

Said all in one word, a quick way to reference car sex. To have sex in a car.

Courtney: hey I found this Geocache right across the road from where we carbangged.

Gabe: oh yes I remember that, you sure were sore.