Top definition
the destruction of all life.
What will happen if George W. Bush is re-elected.
by The Ugly One April 24, 2004
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2
The total destruction of all life.
The only good reason to kill yourself is to commit omnicide
by amongtheomegas November 04, 2004
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3
Modern Warfare 2:
Kill the whole enemy team within 10 seconds
I just killed the whole enemy team which is...........OMNICIDE
by An0nym0us_p3rs0n March 15, 2010
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4
A World of Warcraft guild on the EU realm Dentarg.
Mira of omnicide:

(mira-) at least last time i googled omnicide it gave some really odd results ;D
(mira-) like "not our guild, not our guild, not our guild, oki bored, let's do something else"
by Jaakko J.P. March 04, 2007
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5
A group of rejects that sit on computers all day and try to act edgy over the internet.
Did you hear about those Omnicide kids? What nerds!
by Swag_Lord_Bam_Bam June 27, 2016
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