noun; The prefered mode of transport of the gypo, usually a 4x4. Gypo waggon drivers are generally violent if provoked and have a short fuse. They sometimes have access to tools such as hammers and crowbars and it is foolhardy to enter into a quarrel with them.
Andy: "You look a bit shaken up."
Geoff: "Some cunt in a gypo waggon just threatened to kill me."