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1.
(interjection)- used to convey disappointment, frustration, or disagreement (a synonym for no).
"Nurr, I wish I'd won..."

"NURR! My computer just froze!"

"Nurr, that's not what happened."
by Jess February 13, 2004
 
2.
any emotion you are feeling that you do not have the words for. mostly used in cases of confusion or frustration, or extreme anger.
I'm so confused...NURR!!!
by Sam and Morgan September 05, 2006
 
3.
Used in response to someone that either makes a stupid remark or performs a stupid action, due to either a literal brain defect or mental deficiency, or when the appearance of similar traits, such as feigned ignorance of a situation or subject, are used in a trolling manner.

Can sometimes be accompanied by the contortion of ones hand and thumping the wrist against the chest, otherwise known as the universal sign of retarded.

Synonym of durr
Person 1: "OMG I deleted System32 like those guys on 4chan said and my computer won't reboot now! Help me!"

Person 2: "NURRRRRRRRRRRRRRR!!!!!"

-or-

Person 1: "HAY GUIZ WHO'S SARAH PALIN I NEVER HEARD OF HER????"

Person 2: "NURRRRRRRRRRR"
by Angry_Deuce November 02, 2010
 
4.
1. interj., an expression of affection accompanying a physical gesture such as nuzzling or cuddling; and by extension:

2. n. an instance of affection expressed in this manner; or

3. v. (trans.) to express affection in this manner.
"Nurr!" (while nuzzling)
"That was the best nurr ever."
"I like nurring you so much."
by matt8o February 18, 2010
 
5.
any emotion you are feeling that you do not have the words for. mostly used in cases of confusion or frustration, or extreme anger.
he was being such a jerk! NURR!!
by Sam and Morgan September 04, 2006
 
6.
nurr a word to discribe anger and rage or just be be random and to piss of your teachers
dude1:NURR

chick1:IS THIS BECUASE OVER COOCKED THE ROAST!?
by coca loca April 05, 2009
 
7.
A racial epithet regarding African-Americans.

A slurr of a slurr of a slurr.
nurr => nigga => nigger => negro.

Intended as non-racist way of honkies to quote R. Pryor and D. Chappelle, et al.
"You a li'l tardy with the food there, nurr" -R. Pryor
by Samuel M.F. Johnson December 22, 2004