Chachi

[Becky]

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:

[Monty]

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.

[Becky]

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

[Donald Trump]

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

[Renato]

/[Chya]/./[Chee]/ n. [Korean] word meaning penis.

[Kai]

A [synonym] for vagina. mostly used by females in reference to their [down there] parts.

Also:[chach]

[Jessica]

[The new] [word] for [swag]