The Obama snow-day policy equivalent of "man up." To make all schools in the country as hardcore about not having snow days as the schools in Chicago are. Derived from the comment Barack Obama made about how his daughters' school was cancelled "because of what? a little ice?"
"Dude, there's like 3 inches of snow and we don't have school! What the hell is this?"
"Yeah i know man, our school really needs to Chicago up"
by supajew January 29, 2009
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A well deserved beat down for the actions of being a dipshit or dumbass. Also, for being a snitch, narc or for ripping someone off.
That motherfucker driving buy our house with his loud car at 2:00AM is gonna get himself a Chicago Tune Up in a bad way.

That piece of shit Tom is headed for a Chicago Tune Up after ripping me off like that. He’s gonna be picking up him own teeth with broken fingers.
by Richter Ass October 10, 2021
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