arrogant, annoying, yet stupid at the same time.
Even though you recieved the best grade in the class you dont need to act so chachy. OR You are being a complete chachball.
by Riesyyy October 19, 2006
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Spanish (from Spain) word for cool. Mostly used by children or young women. Refreshing and colloquial way to express you think something is nice or cool.
Ex;
- Te gusta mi nuevo vestido? - (Do you like my new dress?)
- Si, es muy chachi. - (Yes, it's so cool)
by chachi pistachi September 30, 2014
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Origin: Australian/American colloquialism.
Based on Happy Days character.... though evolving over the years...

Used for both Male or Female

Defined: Someone who thinks they are a bit too cool... Generally the person who dresses a bit over the top and/or always trying to "one-up" someone else’s comments, whilst tending to overdo everything they try to do....

Example:
In a Night-club where everyone is in cargo pants and shirts... “chachi” rocks up with the denim jacket and greased back hair, and sun glasses on his head at 2am...thinking he’s a little too good for everyone else at the club.

“Look at that guy over there....what a chachi....!”
by Travelling Mack March 16, 2006
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an oblivious fool; a man with terrible fashion sense, bad manners, and/or terrible judgment, but is generally unaware of that he is making a fool of himself
Oh Lord, get a load of the chachi with the mullet and the "Big Johnson" T-shirt.
by ChairmanRoberto November 9, 2009
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A Chachi is a heterosexual male who could be charectorized as a metrosexual with a white-trash-won-the-lotto clothing style. They wear all the major designer labels but clash horribly as they mix styles at random. They also sport strange hairstyles and mullet remixes and tend to wear blush and lipgloss. They can be found singing along to hardcore rap, boybands, or dancing to techno tunes in the local clubs. Fortunatly this awful metro sub genre is for the time being found only in Europe and very prodomninatly in Switzerland. If you are ever in Zurich you will be sure to see several hanging out at the local McDonalds before clubbing.

Or:
Anything trashy, tacky or tastless
You: " Hey that Chachi just checked you out.."

Me: "Wow I think that kid wears more makeup than a 14 year old hooker. Or is that a 14 year old hooker?....hmm... nope it's a Chachi"

Or:

Nik: " Hey you wanna head to that new bar in town."

Christina: " Hell NO!! That place is totally Chachi"
by Brit_1565 February 20, 2007
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Too cool for school dude who thinks he's the shit. See bro.
Look who just pulled up like the whole place should stop and notice him. What a chachi.
by Princess Stinkypants April 27, 2016
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/Chya/./Chee/ n. Korean word meaning penis.

1. Had a cute Korean girl working my chachi.
by Soulsurvivor_2001 March 8, 2006
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