
Wallpaper can also mean an unobtrusive background, often background noise.
I don't recall every coming across wallpaper as a writing term until it appeared in a lovely review of Firestarter last week. (Ooops, I seem to have 'accidentally' included a more recent one too!)
In this context wallpaper means background, setting or location. It can form an important part of the story, or just be there to stop the reader feeling the action happening in a void.
What kind of wallpaper do you like?
What kind of wallpaper do you like?