House hacking as a concept is not exactly new, but the term is relatively new to me. If I knew then what I know now about the strategy, I would have been more inclined to implement a house hack as a college student, medical student, or resident.
House hacking is real estate investing strategy with which you purchase a one-to-four-unit property with a low-percentage-down loan (3-5%), live in one part, and rent the other parts out.