Top Definition
The new name for the Sears Tower in Chicago after a foreign company bought up the most space in the building giving them the naming rights.
Person 1 - Ever been to the Willis Tower?
Person 2 - What the fuck is that shit?
by July 17, 2009
A made up building that does not exist.
Olivia: I just love the Willis Tower, how it's the tallest building in Chicago.
Denny: What the fuck are you talking about? What the fuck is Willis Tower? The tallest building in Chicago is the Sears Tower!
by Jedi of the Sears Tower August 17, 2016
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