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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a 12 for 12 is when you have sex for 12 hrs straight. A 12 for 12 can either go from 12 am to 12 pm or 12 pm to 12 am.
I met this girl and craziest thing we went 12 for 12 homie.
by WestCoastKing03 July 14, 2022
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Jill: Do you want to violently fuck me right before 12/21/12? It's the last day we'll see each other. OMG#@$%!!
Jack: You actually believe in that bullshit?
Jill: Yes.
Jack: *remembers jill's offer to violently fuck her* Ya i believe in the end of the world shit. *thinks " anything for some pussy" *
by wittyname January 17, 2010
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A day that is significantly luckier than 11/11/11 that everyone should expect to make their biggest wish on.
12/12/12 is much more lucky than 11/11/11!
by dwightonmac54 November 11, 2011
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The date that comes after 12/11/12. Has no real significance in the way we live our lives.
Person 1: Do you know what the date is!?!?
Person 2: Wednesday?
Person 1: No! It's 12/12/12
Person 2: No, I'm pretty sure it's Wednesday.
by Skitzophrenic December 12, 2012
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Adjective used to describe an ugly girl or group of girls. The thought being that 12 x 12 = 144... 144 = a gross. 12 x 12 = gross.

twelve by twelve
12 by 12

Justin: hey, i dont remember what that girl looked like that i hooked up with last nite...

Joe: bro, she's was 12 x 12.

Justin: ..... figures.
by Justin 10E March 7, 2008
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This date will not come again in our life time and is very special. It is also 9 days before said end of the world so its not so lucky but if you wish hard enough it could save billions of people from sudden death
friend 1: omg its 12/12/12

friend 2: so what's so important

friend 1: this is never going to happen again

friend 2: oh okay
by Sierra Madison December 12, 2012
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