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Someone who grew up in the state of Illinois. 9.7 million of them live in the Chicago Metropolitan Area. The other 3 million live in smaller towns. There's a higher than normal chance for a Midwestern state that a randomly picked person won't be white. More people live in Illinois than in any other state in the Midwest. Majority of Illinoisans are hated by Wisconsinites who stereotype us as disrespectful bad drivers and refer to us as FIBS.
I was born and raised in Bloomington, IL. He was born and raised in Chicago. We're both Illinoisans.
by DaChicagoan October 23, 2013
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
A northern Illinois resident, typically from the Chicago area, who is both mentally ILL and Annoyin'... A liberal or a democrat from any part of Illinois.
The Illinoisan wouldn't stop crying about how they are offended by EVERY-DAMN-THING.
by Morgadeth January 23, 2019
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