You are known as someone with a lot of business savvy, but only because you've managed to keep your staggering debts a secret. Which is actually pretty savvy. Someone who is savvy is shrewd and perceptive.
Most English words stem directly from other European languages, like French and Latin. Not savvy. It comes from the West Indies, a twist on the French savez vous? — “Do you know?” Savvy was first recorded in its adjective form in 1905. Synonyms for the noun form include acumen, discernment, grasp, perception, and sharpness.