A moniker for the recently renamed Willis Tower in Chicago, formerly known as Sears Tower from 1973-2009.
Used by Chicagoans to avoid using the name Willis Tower.
Similar in structure to The Artist Formerly Known as Prince, which the
music artist Prince crafted for legal reason to produce
music outside the control of his corporate
music label, until such time as he could regain his rightful name.
Passenger: Could you please take me to Willis
Tower?
Cabbie: What you talkin bout,
Willis?
Passenger: Oh, I'm sorry, I mean The
Tower Formerly Known as Sears.
Cabbie: Sure.