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1.
NSD
"No Symptoms disease"

This term is when people stay home from school and they do not have anything wrong with them.
"The boy stayed home from school, he had NSD"
by never_misses_school May 14, 2010
 
2.
NSD
Non Swimming Democrat: A way of referring to black people who sink, rather than swim. Further specification to the political leanings adds to clarification.
That NSD is sucking the marrow out of that Chicken Wing.

I'm as happy as an NSD in a watermelon patch!
by DJ737707 January 30, 2010
 
3.
NSD
No-Fuck Single Dad

Single father unable to get his end away.
You have to feel sorry for the fella - another NSD - poor bugger
by I'm Mandy - Fly Me February 14, 2008
 
4.
NSD
Nigga suck dick.
This class has got a serious case of NSD.
by Buice September 05, 2008
 
5.
NSD
National Sorry Day.
The day Australia says sorry to the Stolen Generation.

National Sorry Day is held each year on May 26th, since 1998.

The name was changed to National Day of Healing during 2005, but it was decided that it should be changed back to Sorry Day the September of that year.

A formal apology to the Stolen Generation shall be held on May 26th, 2008, by Kevin Rudd.
"What day is it today, man?"
"NSD!"
by Zakul February 12, 2008
 
6.
NSD
N- national S- sports D- development
When you are doing NSD it is just generally alot of hard work.

"What are you doing tonight?"
"I have NSD"
by megzz33 March 03, 2007
 
7.
NSD
Nigga Suck Dick
dude,that guy suffers from NSD
by HeavyArtillaryX September 09, 2008