hillbilly armor
n.— «We were able to install ballistic windows (that we will have to take off and put on another truck when it is their turn to convoy) and put these strange flexible kevlar sleeves over our plastic doors to go along with the particle board “hillbilly” armor built around the back of our gun truck.» —“Victory is mine” by David Shrauger Living Iraq Journal Jan. 16, 2005. (source: Double-Tongued Dictionary)