a male of any age, distinctly characterized by his Italian or wannabe Italian descent. He will be the one with the hair spiked up to the ceiling with pointy sideburns. A guido will always have a tan, even in the winter. Guidos can be seen getting their eyebrows waxed and purchasing oversized valor suits and wife beaters at macys. They will commonyl use terms such as "bro (or brah), yo, nah, and other words that you be able to understand anyway because guidos are known to mumble. They drive their parents' BMWs witht he windows down, while balsting any kind of dance, techno, trance, or anything else on KTU.

Oh my God, i saw ther king of the guidos today. I swear his hair touvhed the ceiling.
by kelley olson March 21, 2006
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it is very hard to define a guido, but the archetype includes: an inordinate amount of hair gel, tight neon colored polo shirts (usually more than one) with the collars popped, and large designer sunglasses. this group is pretending to be of Italian decent if they aren't actually Italian. they enjoy things like lifting, being pussies and taunting without anything to back up their threats or taunts. The areas most densly populated with guidos are the Jersey Shore and parts of new york
that guy in "my new haircut" on youtube is the quintessential guido.
by hatethegamenottheplayer October 19, 2009
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The complete misrepresentation of anything remotely italian because italians, who are actually from europe, have class and do not concentrate their energies on date rape, frollicking, steroids, expensive material items that no one else would buy, cheap girls (who share the same, uncanny resemblance), work construction (which anyone can do), the stupid blowout hear that makes them ALL look related (which may be taken into account due to their lack of intellect), frequenting clubs in NJ, NY, etc on a nightly basis, investing in working out and continuing to dress in those work-out clothes daily, wearing make-up that make them look like dead crack whores, fake tans that make them orange (if one dyes their hair green they will be less respectable umpa lumpas) and egotistical maniacs to the point where ALL of them should be sterilized to prevent further cultural contamination.
Who's the douche who looks like they stood in front of an industrial fan for too long?
That's an unecessary element of society, a guido.

Holy crap! How do I get rid of that guido?
An irish curb stomp usually clears those parasites out of the area.
by (/Leprechaun/) January 25, 2008
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A guy who works out way too much, wears muscle shirts, has his hair slicked back, and has problems forming a coherent sentence.
"look at the guy by the bar, he is such a Guido"
by Rodger Dodger August 1, 2003
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A certain type of douchebag that lives in the New York City metro and is usually of Italian descent (although in my town, some of the Guido-types are Irish, Jewish, Hispanic, or Eastern Europea in addition to Italian.) You can find him in Brooklyn, in Westchester, the Bronx, Long Island, New Jersey, Staten Island, etc.
They are known for driving fast, tricked-out cars like BMW's, with which they blast their God-awful techno music.
They can be spotted wearing spiked-up hair smothered in gel, and often go out for fake tans.
They sport clothes such as A|X (an alternative, Politically-correct term for Guidos in my town is "A|X kids.") They also wear wife-beaters (they're behavior mirrors the name of those clothes.)
They also carry around Nextels that make the awful chirping noises.
They are generally all-around assholes who smoke pot, drink, harass people, live frivilously off of their wealthy or middle class parents, and trash people's property.
"I just heard a Nextel, must be the Guidos again."

"Those Guidos were blasting their crappying techno by my house last night."
by I hate NYC-area subgroups July 31, 2006
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a person so uneducated that he judges the success of another individual by the amount of jewelry or car they drive.
this really happened: I met a Guido at my company's training seminar and one of our speakers was Tony Jeary, who is known in certain circles, but Guid' goes, " I dunno, he ain't got no nice watch. ring or nuthin (it's hard to type this and keep from laughing), so he ain't doin that good."
by Kathryn Stone June 1, 2003
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A species of porcupine, confined to mostly New York, New Jersey, and Rhode Island

See: thegirlbehindthelipstick.blogspot.com/2010/10/guido-survival-mechanisms.html
That Guido is getting attacked by a Grenade.
by LipstickRed October 19, 2010
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