Guidone 

Usually pronounced as "Guidooooneee", emphasis on the "o". Guidone is an Italian name, a nickname for it is Guido, even though the name Guidone is a good enough name and doesnt need a nickname. A person from the Guidone descent is the cool kid at school, hott, everyone wants to be their friend cuz they are where the party's at. The essence of cool.

Yo, Guidone you comin tonight?
mhmmm biznatch
sweet!

Guidone by 832457 September 2, 2008

Guidoune 

Prostitute

Osti, ca sent donc ben la guidoune!

J'ai vu une guidoune se laver la plotte dans un abrevoir du parc Lafontaine hier matin!

Guidoune by kirederf November 22, 2011

Guidonaut 

A guidonaut is the rarest form of guido. Much like regular guido's, guidonaut's use so much hair product that it disrupts their normal brain function. These guido's think they are the greatest thing in the universe, because if you let them talk long enough they will likely tell you they have been to space. Guidonaut's are generally rude to male's and downright degrading to women, especially of foreign descent.

Woman: Guess what I got on my test?
Guidonaut: I don't care! Look at my hair.
Woman: 95%
GN: What you beat me, how is that possible, your a woman.
Woman: Excuse me.
GN: Yah well, it doesn't matter, I have been to outerspace in my VeeDub rocketship!!!

Guidonaut by B. Aldworth, Phd, R. Heinbuch March 31, 2009

Guidonics

Proper noun. A guttural dialect spoken largely in Italian-American neighborhoods or at the Jersey Shore by Italian-Americans, largely a combination of stock phrases like fuhgeddaboudit and malpronounced Italian words (i.e. gabbagool for "capocollo") that are passed off as being true Italian. A subset of English that makes real Italians cringe.

(A sample sentence of Guidonics below)

Vinnie: "Ey yo, youse wanna come over for dinner? My mom's making macaronis wit gravy."

Guidonics by The Gob o' Ghouls January 11, 2013

Guidonculous 

An adjective to describe the behavior of a greaseball who may display the following:
wears too much cologne; drips hair gel, wears New York Giants/Jets/Yankees clothing; abuses steroids, rocks a large chain; ends every sentence with "bro;" asks for Jagerbombs incessantly; preys on drunk women.

"Did you see that guy with the Yankees jersey try to hook up with that wasted girl? That's guidonculous."
"That guy in the Members Only jacket is wearing a guidonculous amount of Brut cologne."

Guidonculous by J.Yeager January 10, 2009

Guidon 

A flag/symbol used to represent a military unit such as a squad, platoon, or battalion.

LT COL: "Make sure the guidon is 3 steps in front of the company, beside the company commander."

Guidon Bearer: "HOOAH"

Guidon by CadetSFC December 27, 2011

Guidonia 

Homeland of the Guidos, an ancient race of smelly, tan dumbfucks.

"One cannot simply walk into Guidonia."

Guidonia by The Duke of Hemophilia January 21, 2010