Usually implies intent to deceive or trick someone into taking something unwanted. He fobbed off the damaged goods as rare collectibles.
Pro Tip 2/3
Not Forceful
The act is done in a sly or smooth manner, not by force or direct rejection. She managed to fob off the old computer on her cousin, claiming it was vintage.
Pro Tip 3/3
Cultural Nuance
Often seen as negative or unethical, it's usually not a compliment to fob something off. Many frowned upon the salesman's tactics after he fobbed off the replica as the real thing.