There are 2 definitions for this:
1) When a complete dickhead tries to play an April Fool's joke on you after midday on the 1st April, or any other time of the year. This becomes obvious when the dickhead says 'April Fools!' after trying to trick you.
2) Anyone that tries to play an April Fool's joke on you, but you see right through it, and to top things off, they say 'April Fools!' anyway, which is just dumb.
1) Dickhead: Hey Chris, you dropped your ipod?
Chris: Did I? *Looks back*
Dickhead: *Slaps Chris over the back of the head* April Fools!
Chris: It's May, dumbass. God, what an April Fail...
2) On April the 1st, this dude comes up to me and tells me my bag's open. Being cautious, I know it's an April Fools joke and just sneer at him. Then, he shouts 'April Fool!' and starts laughing like a retard. That guy's an April Fail!
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A group email from your lecturer/boss/other alerting you and others on the mailing list of your failure.
"Yo, I saw your name on the Fail Mail dude....see you in summer school"
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A pretty failed grenade that doesn't explode. Whoever throws a fail grenade is a n00b and is instantly pwned.
Soldier 1: Grenade!!!
Soldier 2: No don't worry, it's a fail grenade. It won't explode.
Everyone: FAIL!
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After a male ejaculation, and your pee comes out in two different streams, you must make the ultimate decision: which stream will go in the toilet?
The worst is when the most powerful stream changes to the least powerful and you are suddenly powerwashing your wall with piss.
I had a Niagra Fails today at the toilet, the worst part was it's my grandma's.
Niagra Fails just flooded your bathroom.
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Noun
1. A FAIL several orders of magnitude greater than an Epic Fail. Reserved for only the most mind-bogglingly stupid acts a human is capable of. Raises (or lowers) the bar for FAIL, setting a new standard.
A person who commits an Exponential Fail, unless the Hand of God is involved somehow, likely does not survive the act, and they will serve as an example of what NOT to do for countless generations to come, worldwide.
Background: This term was coined when the act of 'Flashblooding' was discovered. 'Flashblooding' is practiced in African countries, usually slums near major cities.
It involves a drug addict injecting him/her-self with the blood of another addict who just got high in an effort to stave off the effects of withdrawals or in an effort to 'share the high', thereby voluntarily opening themselves up to a wide range of uncurable, deadly diseases.
Example:
Mbobo: Can I gits a hit off o' yo crack pipe?
Jenkem: No. I only gots enuf fo me.
Mbobo: Can I's habs summa yo blood so I can git high too?
Jenkem: No. I gots da AIDS and da Hepatitis.
Mbobo: Dats okay. I ain't been high in 3 days... I needs me sumtin.
Jenkem: No, dammit! (passes out)
Mbobo takes blood anyway and injects himself, knowing he has committed himself to a long, slow, painful, lingering death, setting both a new standard for stupidity and inadvertantly launching the phrase: EXPONENTIAL FAIL.
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Failing to the level of Johnny Depp's sexiness. Can also be used when the failer is hot.
Karen: Did you see that dude slip? He was hot!
Sue: DEPPIC FAIL!
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