This is a little understood part of the financial world, the way in wihch you can sell a structured settlement. Another word for the same practice (although with subtle differences) is viaticals.
OK, so that's made no sense to anyone at all. Think of it this way. You get an insurance payout say, or have a pension being paid to you perhaps. But instead of that weekly or monthly check you'd prefer to have the money in one lump sum now. A more formal description is here.
Essentially what you're doing is trading a stream of payments for a lump sum now. The buyer of the stream of payments and the provider of the lump sum is doing the opposite of course. Again, you can click here for more details.
But if this is something that you want to do how do you actually go about it? How do you make sure that you're getting a good deal? One suggestion would be that you start with Settlement Quotes LLC. Click through there to see their site. If you tell them of the details of your structured settlement they'll be able to get you quotes on what the lump sum will be.