A douchebag truck consists of these items:
Tinted windows
Lifted way too high
City boys drivers who pretend to be country
Tires too wide for the truck
Blowing smoke through school zones
Compensating for something.
Usually the drivers name is “Chad, Brad, Brett, Brant, Trent, etc.”
It's a big truck that can carry stuff in the back of it. As the name implies the truck "dumps" things by tilting the bed of the truck so all the stuff falls out.