1) ndt (adj); en-dit: Rather to tell someone "fails" tell them just to "ndt" used for message boards, instant messages, viral comments, internet games or hilarious text messages.
The nickname for the proud line of hair that resides above a seaman's lip. It can range from small seaman recruit sized tickler all the way to a bushy Fleet Admiral sized cock duster. No matter the size, all equally respected and enjoyed.
Chief Petty Officer Grant certainly has a look about him, and that NDT seals the deal on a physical meetup tonight.