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 ?)
See watch your back.
"Hey smarten up!."
You look down the alley realizing what you were about to do and proceed down the street instead.