when you are shatter faced and you already know that you will not remember anytihng you do in the morning thus being already "blacked-out" but still conscience, just extremely fucked up. Usually one is vomiting and trying to pick up fat chicks.
me im in black-out mode i tihnk uhh shot me one more?
by mc rb March 20, 2007
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Being horney to the extent that you do something you regret the next day. Not having to do with alcohol or drugs but just a simple desires for sexual release
I woke up this morning and realized I ordered a fifteen year subscription to my favorite porn site. I must have been black out horney
by JAustinb August 14, 2007
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The act of having explosive diarrhea while aggressively spinning in circles causing the victim to become unconscious.
Did you hear what happened to Margo? She ate too much cottage cheese and got black out diarrhea. She sprayed all over the walls!
by Sweaty Jan February 22, 2009
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A high class, often formal event, usually with an open bar, where you end up just getting completely wasted. A play on "black tie affair". Not to be confused with Urban Dictionary defined black tie affair.
Hey man, you going to the spring formal? Heard it will be open bar.

For sure bro; it's going to be quite the black out affair.
by prakaru August 4, 2009
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When a person is so obsessed with his blackberry that he totally forgets where he's at and what he was doing.
He: HUH?! Where are we?
You: Dude we just went to the super market!

He: I can't remember!
You: Put that thing away!!! you're suffering a black out berry!
by T-kizzle June 22, 2011
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being drunk, but not drunk enough to not remember things. and telling people you're blacked out.
i am seattle blacked out.
by lexil354759747 April 10, 2010
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To become enraged, and to express the rage by shouting and screaming, but using no physical actions. If you Black someone out, it is similar to cussing out. Derives from the screaming comedian Lewis Black
Phil: Dude what happened to that guy?
Joe: I don't know, someone told him he was being a jerk and then he just had a Black Out
by slim phil321 March 25, 2009
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