A movie or set of movies that a high-profile actor/actress performs in purely for the money. Everyone has to pay a mortgage right? Notable examples are Samuel L. Jackson (way too many to count), Charlize Theron (Aeon Flux).
A man or woman who engages in paying the mortgage too long in a bad marriage or living arrangement, and then feels taken advantage of at the end of the relationship.
Harry felt like a Mortgage Mule. He took care of his wife and family for years, then found out his wife cheated, and was just using him to pay the mortgage, so she had security and a place to sleep.
A person who evaluates and mitigates risk for financial institutions. Underwriters are often under appreciated, underpaid punching bags for loan officers, processors. Often times they also become scape goats for upper management. Underwriters are also considered the most hated and vile beings within the lending world.
After asking for further documentation, the loan officer proceeded to the office of the mortgage underwriter and beat her with the stack of documents she requested and then urinated on her.