backpiece
/ˈbækˌpɪs/Definitions
1. noun
A tattoo or design located on the upper part of the back, typically extending from the shoulders to the lower back.
“She spent hours at the tattoo parlor designing her elaborate backpiece.”
2. noun
A decorative or protective piece attached to the back of something, such as a chair, a door, or a vehicle.
“The motorcycle had a large backpiece to protect the rider from the elements.”