noun
art truck; showily decorated truck
A truck elaborately decorated with chrome, airbrushed art, colored lights, and other custom modifications. A subculture phenomenon in Japan, often associated with truck drivers' personal expression.
wasei-eigo (Japanese-coined English), from decoration truck
高速道路で派手なデコレーショントラックを見かけた。
I saw a flashy art truck on the expressway.
He is proud of his decorated truck.