It means F*** the police. 12 means the 12th letter of the alphabet, L. L meaning the law. So they're basically saying F*** the law when they say F*** 12.
"F*** 12 I ain't dun nuthin"
by J-Ryder6 March 29, 2018
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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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12 means 12. It could be the answer for something you don't know the answer to.
"Dad what is sex?"
"12"
by Solechimp March 12, 2021
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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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9 + 1 + 1 equals 11 plus yo snitch ass make it 12
by Icetrae14 July 27, 2020
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Probably the most common number for the amount of songs on any decent groups album, except of course hip-hop albums which some are real good but they have these pointless skits. Which add wasted time to listening to the good stuff
12 songs on Arctic monkeys, Dirty pretty things, Kings of leon, Muse, Nirvana, Oasis, Radiohead, The Coral... to name but a meer few (closest to hand).
by Chest hairs March 10, 2007
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the most awsomist number ever!!!!!!!!!!!!!!!
usually a good day of the month=D
if you see anything to do with 12 anywhere its a good day
jill: wow im having a really bad day
jamie: im sorry,, hey i know something that can cheer you up!
AFTER CLASS
jamie: here jill i made you some thing
<jamie hands a drawing of a 12 to her friend>
jill: thanks i guess :-S
10 MINITES LATER
jill: wow i just got a boyfirend i learned im making an A in english and i am invited to lahlas party tommorow!
jamie: told ya it would make you feel better
=D
by lynnsalter February 13, 2008
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