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Generally refers to an extremely intelligent man, better looking than the everyday George Clooney, who is socially acknowledged as out of every woman's league.
It is a proven fact that a man with the name Giancarlo has a 87% better chance of becoming a porn star or Calvin Klein model than any other man.

Women who are fortunate enough to meet a Giancarlo always attempt to seduce him, always to no avail. Ultimately a Giancarlo will choose a woman after many years of confirming the woman to be worthy. These women are considered luckier than than people who win the lottery.
-"Hey man, I thought I was well hung but then I was at the gym with Giancarlo."
-"You should have known even horses are scared of guy's named Giancarlo."
by thealessandroshow September 23, 2011
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amazing, smart, athletic, handsome, cute, hott, has a 6-pack, very very sexy, the boy every girl dreams about, the most perfect bf, although taken by the best, is amazing on the drums, an amazing kisser, very good in math, someone who gives good advice, looks out for the one he loves, and amazing in bed
girl 1: Wow! Did you see Giancarlo????
girl 2: Yeah!!
girl 1: -sigh- hes so cute!!!
by superchickk:) July 25, 2010
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Word commonly used for a hot latin man. Normally used in the Caribbean.
"Girl I saw this giancarlo the other night at a party, god I want a piece of that pie."
by Sabroso February 20, 2008
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Name for an Italian man, also a famous race car driver, Giancarlo Fisichella.
Did you hear? Giancarlo and Josh are gonna fight each other tomorrow after school!

And Giancarlo Fisichella comes in Fourth place in the formula 1 race!
by Josh Ownsz Yew October 09, 2006
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The kid older than you and treats like a younger brother and offers to be your Jewish lawyer and would kill you just for fun
Giancarlo you douche
by xJEDDI October 07, 2018
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The act of removing the glowing tip of a lit cigarette by rubbing it against a hard surface, extinguishing it completely before proceeding to put it back in your pack. The need to carry out a 'Giancarlo' is primarily a result of wanting to enter a non-smoking area, to hide a cigarette from your elders without having to throw it away, or simply because you do not wish to smoke anymore.
The bus came much earlier than expected, so I had to quickly run to the nearest concrete wall and pull a Giancarlo on my cigarette.
by albatrossviking January 26, 2009
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