An item found in a role-playing game that has no practical use other than being sold to a merchant; essentially a coupon for free gold.
The gems and jewelry in the first Baldur's Gate are vendor trash.
Items in World of Warcraft that are no good to sell in the Auction House, in order to profit from their selling you have to sell them to a vendor.
Dude you better sell that vendor trash to the general goods supplier.
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