Means "son of" (hence all the English surnames like Fitzpatrick, Fitzhenry) but can also refer to an illegitimate child, a bastard, someone born out of wedlock etc.
FitzChivalry is the illegitimate son of Chivalry, the heir to the throne of Buckkeep.
by Andrew Melvin April 27, 2008
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The act of overthinking or analyzing a simple problem, also known as confusing people or AVI'ing it.
Guy 1: Well if you take the tire off and check it then blah blah blah...

Guy 2: Come on man I just want to rotate my tires quit fitzing it.
by 264 QA January 15, 2010
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A nick name for someone with the last name Fitzpatrick or Fitzgerald.
Dude Fitz was fucken baller today he hit a 3 in Nick's eye.
by Fitz Frum Tha 818 October 25, 2007
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1. A suitable name to dipsnap to.
2. A kid who is popular because his name sounds cool if you say it loud enough.
"Fitz!"
"I'll dipsnap to that!"

"Fitz is a really cool name to say loud."
by berkojew October 3, 2008
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1. noun- full retard

2. verb- to instantaneously lose control of your bowels in an unannounced fashion. Usually resulting in going commando for the remainder of the day.

3. adj.- awesomer than everybody and everything around you.

4. adj- The inability to come up with a response to an insult, usually resulting in threats of sodomy.
noun- "Is your brother Autistic? No, it's worse, he's a fitz!"

verb- "Oh man, I'm 75% sure i just fitzed myself."

adj- "I'm sorry, I couldn't hear you over the sound of how fitz I am"
by 725ftn February 27, 2011
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