Guys, and girls, that are extremely trendy, obnoxious, wear overpriced mall clothing and smell like shit. They are usually found in trendy little bars and clubs dancing like a bunch of yuppies
on coke. They try to find other chach's to have unprotected sex with and spread more diseases.
Also pronounced as "chachy" as "chaches".
"Check out that chach over there, i can smell his Skin Bracer from a mile away."
"Those chaches are trying to dance with those drunk fatties, lets throw eggs at them and laugh."