There sure are "chavs" in my little corner of Eastern Europe. We call them "Tzigani" here(NOTE: Not Rroma people, whils the majority are Rroma or of Rroma descent).
They always have popped collars, always wear fake or "junk" jewelry(think bicycle chain bracelette), always attempts to borrow money but never give it back(they usually do this to children or pre-teens), always smoke due to the fact that it's somehow "cool", always brag about their "fighting skills", always brags about family and how they're in "with the mafia", always brags about what they do in clubs, only drinks cheap beer, lightweight drinker, thinks that beating the shit out of women is what makes a man a "man" and very insecure(I suspect this is the reason for the bragging about beating women).
I had the "pleasure" of meeting one of these people myself. I remember how he'd use guild tactics into getting me to give him money. "Come on, I've talked to everyone and no one could. Please borrow me, I'm in debt and bla bla bla". Due to my young nature (13 at the time) I actually gave the money + more so that he could "go to a bar". Oh how my naivity knew no bounds. He'd claim he'd bring it back in a months tops but lo and behold that never happened. His tactic to delay this was that "he'd do his best but he's not sure when he could give it back" and bullshit like that.
Of course the asking of money would never stop. He'd again try and use guild tactics. I remember how one time I got a phone call asking me to give him money so that he could take his girlfriend to a bar. He tried to appeal to "emotion" again: "Come on man, we're friends. Real friends give money. I mean, you've got money, why can't you give some to me? That's what real friends do." and the moment you tried to show any sort of opposition threats with violence would occur "Don't talk to me like that or I'll beat the shit out of you etc". Of course that fucking asshole got no more money out of me. I learned my lesson once and I hope never to forget it.
I've met more than 20 persons fitting the description above. One of them started "befriending" my cousin at school. I had to intervene just to make sure that fucking asshole wouldn't get near him.
So yes, Eastern Europe does have "chavs". It seems that this phenomenon is spreading at an alarming rate.