"Mork & Mindy" is a t.v. series that had aired from 1978 to 1982. The word "Na-Nu Na-Nu" is a greeting given by the main character of the show Mork, an alien from the planet Ork. (pronounced /ˈnɑ nu ˈnɑ nu /) The greeting is also accompanied along with a hand gesture similar to Mr. Spock's Vulcan salute from Star Trek, combined with a special handshake.
"I am Mork from Ork. Greetings, I come in peace, Na-Nu Na-Nu....!!!"

***Proper credit must be given to the true comic genius of Robin McLaurin Williams (July 21, 1951 – August 11, 2014) R.I.P.
by green eyed lady 13 August 18, 2014
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phrase used in the mid 70's early 80's ABC TV show "Mork and
Mindy".Usually as a greeting.
Mork "Na-nu-na-nu, my name is Mork from Ork.
by crooked pinky toe April 12, 2008
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Ablative of nu na nu na pee pee.
Used primarily as an expletive expressing suprise.
What the na nu na nu poopoo?!?!?!
by Not-gonna-tellya April 22, 2005
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0. teasing
1. generated from krishna b patel of nj
2. priya thinks rongly of it..in a whole different outlook
3. jumanji!!
4. um
5. u cant get me!!
Na nu na nu poopoo?! Vot are u saying!?..NO GOOD..poopoo..noO -priya seyz

(fobbishly speaking)
by krishna/janki February 26, 2005
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A flakey person who uses pseudo science & weak or false analogies to support their actions and there beliefs.
The girl waves the crystals around in the air and tells me the crystals speak to her and the the light passing through it purifies the air.
I just think she is a bit na na nu nu .
flaky space cadet
by Winzie December 19, 2013
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