Blackout is the term used to describe when a person is so drunk that they wake up the next morning with temporary amnesia, no recollection of what they did the night before. It can be used as a verb or as an adjective.
verb: "Oh man I blacked out so fast last night, and then I woke up in this ugly girl's room."

adj: "I was so blackout man, everyone was wasted."
by Jack December 9, 2004
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An awesome "post-hardcore" band from Merthyr Tidfil, South Wales, formed in 2003.
Comprised of:
* Sean Smith (Vocals)
* Gavin Butler (Vocals)
* Matthew Davies (Lead guitar)
* James Davies (Guitar)
* Rhys Lewis (Bass)
* Gareth Lawrence (Drums)

Difficult to categorise due to them drawing many different influences into their songs- on their myspace page, they simply refer to themselves as Rock/Rock/Rock.

They have, to date, had 3 technical releases comprising of 1 demo, 1 mini album and 1 full length album:
* Pull No Punches (2004)
* The Blackout! The Blackout! The Blackout! (2006)
* We Are The Dynamite! (2007)

They have also released 3 singles:
* Hard Slammin' (2006)
* The Beijing Cocktail (2007)
* It's High Tide Baby! (2008)

They are well known for the excellent attitude they have towrds their fans, seeing them as "friends" to party with rather than just "fans". As such, they nearly always oblige to photos and signatures etc. Most notably, perhaps vocalist Sean Smith.

They have been linked to Lostprophets who, too, hail from South Wales. The Blackout supported them on their Liberation Transmission tour and Ian Watkins supplied guest vocals on "It's High Tide Baby!"

Stereotypical "rockstars" they aren't- always displaying a humble and friendly attitude. This combination with their catchy and passionate songs is perhaps why they are so popular amongst fans.
I went to see The Blackout the other night and they were totally amazing on stage and so nice off it!
by caFF. February 22, 2008
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When a friend drinks too much (or not a lot, but is a baby girl) too early in the day, and completely forgets all of the embarrassing stuff they did all day.

Also a wonderful re-make of Halo 2's Lockout, redesigned slightly for Halo 3.

When a friend grabs your dick while you're wearing sweatpants.

When a friend head-butts you through revolving doors.

When a now former friend makes out with your dog, and tries to feel it up.

He is a BLACKOUT.
by RubiusHaggard April 7, 2009
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The most amazing Transformer ever! In the Transformers 2007 movie. Likes to bomb the Qatar base and prove how much of a BAMF bawse he is. Really good with producing massive shock waves with sonic cannons. Has a partner called Scorponok that's a GIANT METAL SCORPION.
Decepticon and known as "Megatron's Loyal Hound".
Cool temperate, cool gadgets, epic killing machine, totally the greatest Transformer ever.
And he's not to bad lookin either.
Dayum, did you just see Blackout beat the slag out of Starscream?
by ThatAwesomeChick2.0 January 25, 2012
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When electricity is "out" to specific regions or cities.
The Blackout of 2003 was the biggest blackout in North American History and took place in New York City, Detroit, and many other areas in the Northeast of the USA, and in some areas of Canada. The cause was unknown after 24 hours, which is right now, go figure.
by Aquajeff August 15, 2003
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Blackout is the state of which all college kids strive for during any night of the week. Total lose of all memory which leads some retarded fuckin stories.
Tom: "Yo, I was so blackout last night."
Pete: "Ya thats probably why you fucked that ugly hoe."
Tom: "What?"
by BuddhaBurp November 11, 2007
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