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Usually refered to as someone who has made a complete and utter failed attempt to find humor in something completly irrelivant or in no way humorus to begin with inside the internet in a despriate attempt to be popular.
An E-fail can be multiple things and include but are not limited to:

Trying to make up something utterly stupid to post on the internet to impress a bunch of people who don't really don't care to begin with.

A more direct example would be kids with no lives trying to duplicate the 'numa numa dance' to become an e-celebrity.
by oldmanwithagrudge October 05, 2009
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A failed email. One that gets lost in cyberspace
My best friend sent me an "efail", which I never recieved.
by Max T. November 27, 2003
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1) Failing an online course, most commonly used for extremely easy online courses.
2) When an e-mail is not sent for whatever error (user, hardware, software).
3) A failed pickup attempt online with a chatroom companion; rejection
1) "Damn, I cannot believe that my online basket weaving course turned out to be an e-fail. Now I'll never graduate."
2) A: Did you get my e-mail? It was very important.
B: No.
A: Crap. The TPS reports are going to be late because of a stupid e-fail.
3)A: you wanna cyber
B: No.
A: Well that was a total e-fail.
by Induhvidyooul January 16, 2007
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