Acronym for Ghetto Utility Vehicle.
Years ago when gas prices went up everybody stopped buying the big Buicks and such, opting instead for smaller cars, with the larger cars then going to poorer neighborhoods occupied by people with shorter drives and/or less up front buying power. Now the same seems to be happening with SUVs, leading to the name GUVs, or Ghetto Utility Vehicles.
I see that Tammy is still driving that GUV. It must be costing her a fortune in gas!