A portmanteau of "happening" and "fap", the latter of which in turn is an onomatopoeia for masturbation. Popularized by the 2014 celebrity pictures hacking scandal, or "Celebgate".
The Fappening is the name that’s been given to the gigantic booty of sexts and other steamy photos that leaked all over the internet after first being posted on 4Chan earlier this weekend
by AGC195 September 2, 2014
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an event that occurs when someone on the internet releases a large amount of fappable or nude/semi-nude pictures of famous people.
"When those girls hit up the topless beaches in Spain, a great fappening will consume the internet."
by TJNR September 2, 2014
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When a bunch of people start fapping out of no where.
Guy 1: Dude, were you at the party when the fappening happened?
Guy 2: Yeah, I started it.
by iDubbbbbbbbbbbbbz December 9, 2016
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The day in which the Great Journey commenced as foretold in the Great Prophecy, in which hundreds of nude pictures of various female celebrities, whose bodies many men have salivated over, were leaked on the Internet. As a result of a leak of such biblical proportions, "The Fappening" commenced, which implies that thousands masturbated to these leaked pictures.

8-31-14, Never Forget The Fappening.
Sam: Dude, remember when all those pics of Kate Upton and JLaw went viral?

Tim: Yeah man, I took part in The Fappening.
by YourBestWorstFrenemy September 1, 2014
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August 31st 2014, a day that shall go down in history. On the day of The Fappening ,high amounts of explicit photos of various female celebrities including Jennifer Lawrence and Ariana Grande were leaked. The internet rejoiced.
P1: Dude did you see those leaked nudes of Jennifer Lawrence?
P2: Of course! Who didn't take part in the fappening?
by UntamedMustache September 1, 2014
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A very hard pinch. Usually performed with a pinching gesture.
"Thats the fucking fappen"
"Thats it you are getting the fappen"
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The greatest day in the history of the internet, which took place from August 31st-September 1st, 2014. Dozens of nude photos from the hottest celebrities such as Kate Upton and Jennifer Lawrence were leaked into the internet underground and made their way onto social media shortly after. It was also discovered that Kate's boyfriend Justin Verlander may have been cheating on her with other women, judging by the numerous pictures and videos of women leaked from his phone.
Man 1: Dude, why didn't you come into work yesterday?
Man 2: .....The Fappening.
by The composer September 1, 2014
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