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Original Net Anime. Anime that has been released without the backing of a broadcast network.
Did you see that one shot ONA on time travelers that just came out?
by Malevolent Loki November 14, 2016
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A very interesting person. One will often see an "ona" in places they are not expected to be. When you see them they are often hard to miss. And as soon as you have found them they are also very hard to forget. This stunning person will leave memories one can not soon forget.
"Man she pulled an ona"

"Did you see that ona yesterday. Wow that was wild"

Jen:Hey where were you?
Jack:At school. . .
Jen:Freaking ona!!!
Jack:Why's that?
Jen:You have never picked up a book a day in your life. . .
by iamwhoiam123 March 12, 2009
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An amazing usually a girl that makes a really great friend that remembers things that are important to you and will go out of her own way to help others even if she dosen't know them . Great person to be around that is very kind and doesn't see her own beauty and easily falls into other gossips that she doesn't know aren't true and needs to be reminded that she is loved.
Random girl "wow who's that "
Friend "that's ona "
by grahamcrackerr April 01, 2015
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ONA is an anime acronym for "Online Net Anime". ONA shows are only released onto the internet, which means they can not be released through TV or DVD beforehand.
Shows such as Aggressive Retsuko and B: The Beginning are considered ONAs.

However, Netflix Originals like Little Witch Academia was released on TV in Japan beforehand, so it does not meet the criteria of an ONA show.
by FesterTY October 02, 2018
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Did you see that lovebite on his neck? She bit him like and Ona last night!
by Benjaroo June 29, 2010
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Opie and Anthony - Well rated, edgy radio talk show hosts that were tossed around various FM stations and achieved various levels of syndication before switching to XM satelite radio to avoid FCC restrictions. They popularized the WOW (Whip 'em Out Wednesdays) promotion.
OnA rule! They totally beat out Howard Stern.
by Mike W. August 07, 2004
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A small and simple whisper of a town. Located in between Milton and Barboursville in West Virginia.
There is nothing really in Ona other than houses, let's go to the mall in Barboursville.
by Sophie Grieves August 17, 2009
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