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14.
Nbd
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 04, 2011
 
1.
NBD
Stands for "No Big Deal".
"Hey Joe, are you worried about the trig final?"
"NBD. Got it covered."
by Kyndria Brown May 13, 2005
 
2.
NBD
Acronym for the phrase "No big deal". Typically used sarcastically at the end of a statement of importance as to say it was in fact a big deal.
I got an 89 on my econ final. That's 10 points above average! NBD.
by E. Michael Wood July 10, 2008
 
3.
nbd
No Big Deal
i'm in a canoe halfway across the atlantic on my way to london, where i'm going to ride into buckingham palace on a zebra and kidnap the queen of england. nbd.
by nathalie.viridescence February 07, 2011
 
4.
NBD
Stands for "No Big Deal" Used in online, and IRL settings.
Yo genesisjack I just got 6 headshots in a row, NBD.

"um yeah your right NBD at all I just got 12 and teabagged you"
by tehleet November 16, 2007
 
5.
nbd
"no big deal"

often used by people to ensure that is was no big deal, even though it probably was...
mostly used in texts or lame facebook posts.
Guy 1: "Just got an A+ on the math final nbd."
Guy 2: "nobody gives a fuck."
by EatDog December 22, 2011
 
6.
nbd
a phrase that, usually teenage girls or boys, use to brag about something without actually bragging about it. Extremely annoying and often makes the reader want to punch a uterus.
thomas: "just got laid seven times...in a row. nbd or anything"

you: "FUCK MY PENIS THOMAS"
by DrSpearmint June 12, 2010
 
7.
NBD
No Big Deal. it saves you precious seconds while at the same time sounding like you know what your doing
um NBD but i just did a back flip
by papa ogdog August 27, 2009