the language used by a particular group of people, especially when it is difficult for other people to understand or they find it annoying management-speak Visitors to Web sites don't want to read marketing-speak. His e-mail was a nonsensical paragraph of management-speak. Unlike his colleagues, he avoids White House speak. The “finished goods inventory”—that's Wall Street speak for unsold goods.
See -speak in the Oxford Advanced Learner's Dictionary