The combination of #1 and #2. In other words, when you have to pee and poop.
Be right back guys, I have to do a #12.
by z JF z December 14, 2009
To clarify, 12 is not the cops, not the police. NO. 12 is the narcotics officers that show up at your door, or the drug task force in other words the DEA (Drug enforcement Administration). They combat drug smuggling use in the U.S. Aka why in the song fxck 12 by migos he says "throw that shxt throw that shxt 12 outside" refering to throwing the drugs because the DEA or 12 is about to kick the door down.
FXCK 12.

12 kickin in the front door
by sabreeezyy May 31, 2015
Verb: the act of giving oral sex to someone

Noun: a person that gives blow jobs
Jaunito: yo man how was last night?

Pedro: man it was great!!

Juanito: why what happened?

Pedro: I got a 1-2 from hoedini

by random boner club February 04, 2010
10-12 is a cb-radio 10 code which means "visitors present". It was a way to let someone on the other end know to be careful on what they said. Today it can be used to warn someone to stop talking about something or to be careful what they talk about at that moment.
Hey we got 12's.
Uhmm I was going to say something but there are 12's.
by testit143 April 15, 2007
Just like in the movie "Shrek", Princess Fiona turns into an ugly Ogre at 12a.m.. 12 is the time of day where the most beautiful girl, whose beauty is literally too good to be true, grows an enlarged werewolf male reproductive organ and yells "abbbblllllllaaaaaaa" for about a minute while walking on all fours. This is usually a turn off for most guys, but some may find this attractive. When kissed during the transformation the beautiful girl will become an overweight male New York City subway performer, who honestly isn't even good, but gets money because of his crooked eyes. So she should not be kissed during the transformation or else you will end up loosing another $.75 to a clinking cup.
Hey Crawford watch out for Taylor, it's about 12.
by Fat-guy-toh May 31, 2011
1. Westec Intelligent Surveillance slang for ignoring someone or something.

2. To disregard per special instructions.

3. First step in a Zales' Burg Alarm.
I tried calling Matt Bennett to see if he wants to party but he 12'd me.
by notMPT July 29, 2011
The name you give people who act alot younger than their actual age. Especially guys who are acting very immaturely in public.
He's so 12.
by seriouslyonlyme April 12, 2009

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