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To get rejected, declined, especially when your hopes are up.
I asked out this guy but he shut me down. Fuck him.
by Tiffany January 05, 2004
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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What congress does when it wants more attention.
Yet another government shutdown just so congress can get the news channels to pay attention to them.
by ShutdownHater October 08, 2013
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When a human being or creature is in a state of nothingness. The individual has lost all train of thought and is completely useless. A victim of shutdown cannot think, has no motor skills, appearing to be much like a pilon. Shutdown is often caused after a day of vigorous activity, or simply from being lazy.
After spending the previous five hours stroking his male unit, Mark went into shutdown.
by gobrownsgo66 February 22, 2010
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Slang to mean something was done incredibly well or something was done astoundingly in a notable way.
We pulled up to the party last night and we totally shut down.

Michael Jordan always shut down on the court back in the day.
by non_stop_jayjay January 19, 2016
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To be shut down is similar to being burnt (see 'burn'). This occurs when the first party is keen to do something, but the second party does not want to do it with that person, so they 'shut them down'. More often than not this happens involving trying to pick up with people of the opposite sex.
Greg: "Hey sweety, will you go out with me"
Laura: "I'd really like to, but I don't think we can"
.... Greg just got SHUT DOWN!
by Gav800 September 05, 2005
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ohhh, you just got shutdown, like you just got totally insulted or proven wrong.
person A: "China is SO the capital of Thailand."
person B: "nu-uh!"
person A: "yuh-huh! ask person C."
person C: "actually, BANGKOK is the capital of thailand."
person B: "ohhh, shutdown!"
by lauren August 31, 2003
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