John: When my daughter is older she will be under a strict NBD policy

Paul: What's that

John: "No Black Dick"

Paul: Good call
by NBD2010 February 10, 2010
Get the NBD mug.
Nbd or Non-Intentional boner disoder. Usually happens to boys around the age of 10 to 16. This is an uncontrollable event and completely normal. Once a boy becomes a "man" he will no longer get Nbd's. Unforetunately some people will experience this disoder for a longer time than others or possibly forever. That is why you don't want to use viagra. At a young age.
Jill: "Hey jack"
Jack: "Hey"
Jill: "What's in you're pants?"
Jack: "Oh, that? Just my enormously large cock I can't hide"
Jill: "You mean you have Nbd"
Jack: "yes...."
or
Jack: "I had the hardest Nbd last period"
John: "I know my pants are so tight it hurts"
Jack: "Man, Nbd's are annoying"
John: "I know mine was harder than a goats butt in a jalepeno pepper patch"
by cockblocker6969 November 4, 2011
Get the Nbd mug.
Specific use in skateboarding: Never Been Done (cf. ABD, Already Been Done)
Meaning either the trick itself has never been done, or a particular existing trick has never been done at a particular spot. NBD is used this way because of the (perceived) importance of originality in skate-videos. It's considered lame to publish ABDs.
Filmer: OK, we don't have an ABD list for this spot, but we at least know it's been kickflipped, meloned, nollied and tre-flipped.
Skater: Pretty sure fingerflip airwalk is NBD...
by rufusdos September 12, 2017
Get the NBD mug.
Does any of this mean that catching Kavanaugh in a lie would be NBD? Not at all. A falsehood, material or not, purposeful or not, provided as testimony before the Senate is seriously troubling.
by scott888 October 2, 2018
Get the NBD mug.
1. An expression of forgiveness, "no big deal", found sometimes in video games where someone has done damage.

2. Trying to tell a raging person to be quiet, to settle down.
<player 1> Sorry i shot you.

<player 2> NBD. I was in your way, anyways.
by u2forever July 19, 2011
Get the NBD mug.