1. A person who deals in goods of the kind or otherwise by his occupation holds himself as having knowledge or skill peculiar to the practices or goods involved in the transaction or to whom such knowledge or skill may be attributed by his employment of an agent or broker or other intermediary who by his occupation holds himself out as having such knowledge or skill - Uniform Commercial Code 2-104.
2. A famous streetballer in the Feudal Lords, Daniel Gurrisi.
3. The bartering of moves on the basketball courts.
1."The electronics merchant sold the man a stereo."
2."The Merchant threw it down so hard at the last game, he had to get drunk after."