The most powerful attack in Final Fantasy VII of Squares Final Fantasy series. Omnislash is the character Cloud Strife's final limit break, consisting of 14 repetitive critical slashes followed by a powerful leaping cleave.
Omnislash is the greatest attack in Final Fantasy VII.
by Omnislash March 31, 2003
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Yurnero's Ultimate move in Dota Allstars < Warcraft 3, follows 3 slashes at lvl 6 dealing full damage, 5 slashes at lvl 11 and 8 slashes at lvl 16.
by Bubba_The_Retard April 10, 2007
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The internet alias of a great flash designer/developer and gamer, known among gaming communities.
Omnislash creates awesome elite flashes.
by Omnislash March 31, 2003
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A writer or work of slash fanfic that contains a multitude of pairings. Often used to refer to writers that will write any pairing, no matter how implausible, simply because it is slash and therefore good.

Derives from omni (all) and slash, the plethora of Final Fantasy 7 yaoi also likely playing a part.
"Don't bother with her work, she just writes omnislash."
by Imbrii June 7, 2005
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The method of quoting someone's forum post piece by piece (often taking their words out of context) in order to disect, degrade and ridicule their argument.

This term originated on the Relic forums back in 1999-2000 when a user there named Omnislash regularly used this method to argue with other forum members.
"You're kidding me,"

I never kid!

"if that were the case.."

The case? A suitcase?!?!

"then why does it seem"

Seems madame? I know not seems..

"like you're not making sense?"

I use sense, but I don't claim to make anything!

etc etc.
by DDT September 16, 2004
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Cloud's ultimate Limit Break. Cloud assaults his oppenent with a long series of powerful sword attacks (15 hits). This may be used against a single enemy or a group; either way, this is an extremely powerful attack. With the correct sword in hand, this attack can actually cause just as much, if not more, damage that the fabled "Knights of the Round" Materia.
Cloud killed Emerald WEAPON with Omnislash.
by Master Tonberry December 9, 2004
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Cloud's Final Limit of Final Fantasy 7. Second only to Knights of the Round. In Final Fantasy Tactics they added a second Final Limit to Cloud called Cherry Blossom. A devastating 16 hit attack.
My friend got Omnislash on Disc 1. They have a guide at http://originalnintendo.net/blog/2008/12/omnislash-disc-1-clouds-final-limit-of.html
by Matthew Corgan January 5, 2009
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