The Financial District of San Francisco, California. Also known as Wall Street West.
My office is in the FiDi near Market Street.
by Momus the Sarcastic August 6, 2009
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The Financial District of New York. Known for being the neighborhood where the real Wall Street is located.
FiDi is the economic capital of the world.
by MastaCheez November 10, 2018
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A better word for green AKA doing to much (can be used as FIDY or FIDY FIDY)
HIM: yo i just cheated on a test

YOU: DAAAAAM you FIDY for that
by T-bone FIDY man June 8, 2021
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refering to the rapper "50 Cent" of the G-Unit crew.
Fidy popped them fools when then ran up on him in that Jersey City hotel.
by roro January 9, 2004
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I'm so broke, going to Coachella would be stupid right now but, FIDI!!!!
by selecious January 10, 2014
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three dollars and fifty cence
the loch ness monster came up to and said "i need about tree fidy"
by greg March 6, 2003
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