Top Definition
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 26, 2008
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 24, 2007
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
1. A suitable name to dipsnap to.
2. A kid who is popular because his name sounds cool if you say it loud enough.
"I'll dipsnap to that!"

"Fitz is a really cool name to say loud."
by berkojew October 03, 2008
the art of coordinating clothing and accessories with name brand shoes
Jane is wearing a green shirt, green jewelry, skinny jeans with her brand new green Chucks. She think she got fitz!!!
by Spice1871 June 18, 2009
When someone agrees to do something and changes their mind five seconds later
"You just said you were going now you're just being a Fitz and backing out"
by KingDiaz March 08, 2015
a cut on your thumb or a cut on any finger
That fitz looks like it might hurt.
by Big A Boo March 18, 2010

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