Horse-trading
An term used to mean negotiations. Often refers to negotiations that are particularly difficult to resolve and involve much compromise.
After a lengthy amount of horse-trading, the market trader agreed to meet the barterer midway.
Horse Trade
A disingenuous deal where one party knowingly conceals the quality of a good/service in a way that the other party perceives the deal as being better than it actually is.
Joel horse traded me on that bed frame. He said it was for a queen-size mattress, I took his word for it and didn't notice it was full-sized until I got it home. Now I have a bed frame I can't use!