zombie
n.— «Investments which last for much longer than the five-year standard nowadays often go one of two ways: either the company is killed off by the weight of its borrowings or it becomes what is known as a “zombie”—a business that still manages to generate enough profits to pay down debt, but is too highly leveraged to attract the buyer needed to provide a necessary exit.» —“Squeeze leaves equity houses with ‘zombies’” by Michael Fahy Crain’s Manchester Business (United Kingdom) Apr. 14, 2008. (source: Double-Tongued Dictionary)