trunking
n.— «Trunking, as it is known, is already an infraction. Unfortunately, this is becoming a very common practice as teenagers are attempting to get around provisional driver’s license restrictions that limit their ability to drive with friends in the car. So instead, they hide their friends from the police by putting them in the trunk.» —“Mountjoy Introduces Measure For Teen Safety” in Sacramento California Chronicle (Beverly Hills) Feb. 24, 2006. (source: Double-Tongued Dictionary)