The pretentious, overly complex language used in business realms to describe simplistic ideas. Very similar to MBAese. The opposite of straight talk. Often used between business associates to confuse one another and make screwing one another over that much easier. The term originated on Wall Street, the center of business douchebaggery in the United States.
Person 1: "Well, this quarter we need to liquidate the losses, stakeholder, derivative, subprime lending, yada yada yada"
Person 2: "Man, just quit talking Wall Speak and get to the point."