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pay attention to what you're doing

See watch your back.
While walking down the street you go to turn down a blind alley. At the corner someone notices you.

"Hey smarten up!."

You look down the alley realizing what you were about to do and proceed down the street instead.
by th3m0nk October 16, 2011
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May 14 Word of the Day
Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy
Person A: Man, that nutcase Martin Bryant guy shot 35 people in Tasmania!

Person B: No, he wasn't a nutcase, that was just a psyop so the government could have an excuse to ban guns.
by Mystikan April 11, 2006
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2
to smarten somebody up - to make look nicer or neat in appearance
then he smartened her up

he would smarten up her (ignore this line, it's just for the stupid input mask to stop saying "Example doesn't use the word smarten up."

purportedly, kidnapped child Natascha Kampusch's kidnapper would try to smarten her up and photograph her when he had beaten her up. (Don't like this example though it's the source - from Wikipedia. Better example anyone ?)
by pookie3456 November 03, 2006
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