The infamous tumblr crash of December 12, 2012, is the day when tumblr was down for hours with no warning. Lots of "MY FEELS" and "ALKAFELFJAFJEWLAKJKA" resulted from this. People believe this is really the end of the world, because it happened on a triple date. Some also think that it was also another social experiment conducted by Cole Sprouse.
Sometime in the near future:

-Hey Liz, what are you doing?
-Nothing. I think there might be another tumblr crash of 12/12/12 going on. What will I do with my life? MY FEELS.
by EZBothwell December 13, 2012
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When you miss 11:11 and you gotta bounce on some dick at 12:12
Damn missed 11:11 gotta bounce on some dick at 12:12
by Dadasouras January 27, 2019
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A time where u post on ur Snapchat of the people u don’t like
Person1: bro that one guy is my 12:12

Person2: oh for real
by Snapchat things April 19, 2019
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1. They day the world will end , according to the Mayan Calender.
2. The day anyone born on 12/12/1996 should have their sweet 16, for anyone born on that day will turn 16 on that day.
3. The worst sweet 16 ever!
A man I'm gonna die on 12/12/2012 , my sweet 16!
by bagels1212 November 23, 2010
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Masturbating or ejaculating 12 times in 12 hours.
Dude, last night Bobby was challenged to the 12 in 12 challenge and he accepted! His dick's gonna fall off!!
by Tigs978 December 2, 2009
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