Military acronym for Drill Instructor.
The DI made recruit warren do 200 pushups.
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."
Only the best person in the world! Even though she has no ears and blonde hair that only goes up half way. See also pubic lice
Oh my God look at the Di's on that guy. Smelly.
Another way of saying "retard" or "you're stupid". It's usually said in a deep "stupid voice"
Boris: I just walked into a door!
Doloris: You're such a di di di!
Little Johnny had a bad case of DI DI last night and sprayed the toilet
1. Elongated form of the phrase "dis."
2. Taken from "Was that a dis? Yes, in fact, I do believe it was."
Frank: You know who else is good?
Evan: Who?
Frank: Your mom.
Mekko: Ooooh dis? dis.