If something is scuffed, it has marks or scratches on its surface from being rubbed or scraped.
Scuffed things might look old or not taken care of.
Examples:
The scuffed shoes had marks on them.
She scuffed her knee when she fell.
The scuffed table looked old and worn.
He scuffed his new bike on the first day!
The scuffed floor looked like it had been walked on for a hundred years.
The scuffed wall made the room look messy.