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Used to describe a person who improperly pronounces 'Illinois' with the 's' sound at the end.
"Illinois is pronounced 'ill-in-oy', not 'ill-in-oys'. The way you're saying it makes you illinoising."
by TheWizardOfTheWoods January 11, 2017
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2
1. (A.) The quality of being both annoying and originating from or residing in the state of Illinois at the same time.

2. (A.) The quality of being annoying while being physically located in the state of Illinois.

3. (V.) The act of simultaneously being annoying and originating from or residing in the state of Illinois.

4. (V.) The act of simultaneously being annoying and being physically located in the state of Illinois.
I met my cousin in Chicago last weekend for lunch, and, man, was she Illinoising me! She wouldn't stop talking!
by Matt January 14, 2005
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