A person who evaluates risk for an insurance company. Underwriters are typically underpaid, underappreciated, and have to endure a lot of corporate politics. Their job often involves having to rate policies and performing other unpopular tasks.
"You know, Bob, that person seems to have an ability to be cold, impersonal, and downright mean, all while towing the company line. I think he would be a good underwriter."
A term used in insurance underwriting that means the applicant will have to pay additional premiums for the coverage for which he or she has applied. Underwriters often rate a policy arbitrarily to increase the company's "bottom line."
"Damn, if I'm going to get that bonus next year, I'm going to have to get off of my ass and rate some policies."
In the financial services industry, DI is disability insurance. It is typically sought by people who are screwed up and are about to "go in the tank" physically or mentally. DI is offered by companies that charge hefty premiums and run claim departments that are intent on reinterpreting the provisions of the policy to prevent the payment of legitimate claims.
"Damn, my boss fucking hates me. This has really messed up my mind. It is a good thing that I got DI, because I feel a mental-nervous disorder coming on."