The act of running people over with Cars, busses or any transportation vehicle, not including boats or helicopter. This refers to multi-player online only to get a quick kill. This refers to Call of Duty 4 online players who “camp” or are called campers. These people sit in one spot and wait for someone to walk or run by to kill them without being seen. pronounced "Gamping" with silent "t"
a Gtamper would be player in GTA4 multi-player, this player would run over many people with a vihicle to gain achivements. if you run over people with and 4 or 2 wheeled vihicle you are Gtamping