A term for differing schools of political campaign theory, originated by ABCNEWS' The Note internet report referring to the Iowa caucuses of January 2004. "Mo" refers to momentum, or the last-miute media impact of a candidacy, whereas "O" refers to organization, the ground troops of a campaign fomenting a result.

For interest, "Mo" triumphed in Iowa 2004, as the insurgent campaigns of John Kerry and John Edwards soundly defeated the old frontrunners Howard Dean and Dick Gephardt.
"So this will be a contest of mo versus o."
by MarkusRTK January 22, 2004
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When having sex with a woman in her anus while her monthly visit from Aunt Flo.
"Dude I wanted to so bad, but it was that time of the month. So I went for the back door and totally joe versus the volcano'd her."
by Albert V. August 16, 2008
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Simultaneously the best and worst movie to ever be made. 90 minnuets of your life that you will never get back and you will not want back. It is exactly what it sounds like.
I just watched "Mega Shark Versus Giant Octopus." I don't even know what to say.
by The Wandering Mousepad July 26, 2010
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The awesomest fight in the freakin' world, man.
Did you see that Bear Sized Praying Mantis Versus Bear fight? That was the shit, yo.
by David Kinglord November 20, 2006
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Versus Videos are a type of online video on the website YouTube in which the host will discuss a hypothetical fight mainly involving fictional protagonists from graphic novels, films and television to determine the winner of the fight.
Versus Videos can be made by anyone, meaning anyone can adopt the mantle of an “expert” and present their opinions as facts to those viewers less aware of the topic; at times, the recurring issue for some viewers concerns the host's KNOWLEDGE of the opposing protagonist’s abilities and histories, rather than who would win the hypothetical battle. Rule of thumb: be careful who you listen to.
There are a general set of unwritten guidelines that YouTubers seem to adhere to, in no set order, when presenting a versus video: (a) the host of the versus video –regardless of their favourite character – should ALWAYS be fair and impartial about the fight; (b) the host of the versus video will discuss ALL the relevant historical and background information about the opposing protagonists; (c) the host of the versus video will discuss ALL the relevant strengths and weaknesses (if there’s any) of the opposing protagonists, and compare and contrast their respective abilities, skills and powers; (d) the host of the versus video will reach a conclusion, based on ALL the evidence, of how the hypothetical fight –in their UNBIASED opinion– will end; (e) the host of the versus video will usually seek the views and opinions of the viewers about the fight.
The following versus videos (below) –with the actual comments of the hosts included– can be found on the website, YouTube:

1. Versus Series: Exar Kun Vs. Starkiller
by Jensaarai1 aka The Nerd-Rage Ranter
I meant to upload this yesterday, but alas, I was delayed.

2. Superman vs The Hulk - Who Would Really Win?
by Trevschan2
What's up guys so I thought I would do a video on who I think would win in a match or fight to the death between Superman Clark Kent and The Incredible Hulk Bruce Banner. This is a non biased breakdown of who I think would win between the two and who is stronger.

3. Versus Series: Darth Malgus Vs. Sora Bulq
by Jensaarai1 aka The Nerd-Rage Ranter
My first Versus Video of my second year on YouTube; an ancient Sith Warrior and a more contemporary fallen Jedi, both great swordsman and powerful Forcewielders and Darksiders.

4. WHO WOULD WIN: Darth Vader or Darth Bane?
by GreyJedi91
Be fair and unbiased. This is not a "favorite" contest this is about skill.

5. Goku vs Superman - Who would win?
by Trevschan2
This is a video I am doing as a hypothetical match up between 2 of the most famous characters in all of comics and literature. This is a match up between Son Goku and The Man of Steel himself Superman.

6. Versus Series: Kit Fisto Vs. Ulic Qel-Droma
by Jensaarai1 aka The Nerd-Rage Ranter
My sixth Versus video, pitting one of the secondary movie Jedi against a reasonably well known one from some obscure Star Wars comic published back in '95.
by The Centurion December 1, 2013
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