22
an epic fail is a term used when something unexpectedly funny happens or is happening.
A Sign that says "We sell the best GLASS" and the G and L have been blown away so it says "We sell the best ASS" Epic Fail

or

A Coca Cola truck carrying Pepsi products.Epic Fail
by Simpsonfan15 February 27, 2010
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23
When something is ruined horribly, or is buggy beyond belief. Full of fail.
The Kiwibox 3.0 web page will be an epic fail.
by bestestfiend November 01, 2009
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24
General definition - Anti-causality. When the desired or expected effect is the only effect NOT achieved by any given cause, this is EPIC FAIL.

Definition as it pertains to Relativity - Failure so monumental in scale that it has the possibility to rupture the space-time continuum by fracturing the light-cone at the point between the causal past and causal present boundaries because there is no possible way the cause could precede any effect within the same spatial reference frame of the observer.

Definition you're most likely to understand - The result of the physical union of your parents.
Bob: "I posted my music on myspace because I wanted to be appreciated by the masses"
Greg: "Oh yeah? What happened?"
Bob: "Turns out my music makes people's ears fall off"
Greg: "Epic fail, no cookie for you!"
Following this conversation, the universe folds in on itself and is oblitera
by Theydrick October 18, 2008
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25
To fail horribly

However bad a fail is, you do NOT say "epic fail" in reality, it makes you sound like a total douche.
"Awww dude, i just fucked up on that math test"

"LOLOL EPIC FAIL HURP DERP DERP"
by Anonynoose February 23, 2009
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26
George W. Bush's presidency.
Me: 8 years wasted... George W. Bush shall be known as the greatest epic fail ever made between a man and a woman.

Dave Chappell: Word.
by wholeoh March 30, 2009
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27
An impossible, improbable, occurrance that is only achieved by the lower part of our society. But if you occomplish a fail that is impossible, than in theory, it could be labled an "epic fail."
Parking your car in your roof is, in theory, an "epic fail."
by chiefjoboo June 29, 2009
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28
by Runningaroundincircles November 29, 2010
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