A trademark appearing on vacuum tubes manufactured by National Union.
by BlastMaster June 19, 2003
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Used when you want to say no but it makes it more kawaii. Pronounced as it is spelt basically.
John: I’m sick today
Steve: nuuu
by 321isso123 January 20, 2020
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a penis. like if you pronounced it (pea-nus).
I really like you, and my nus seems to feel the same way.
by blizzyblaze August 07, 2007
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"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 11, 2008
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