гопник

Etymology
or.

Folk etymology connects the term to the acronym for, the name of a former Saint Petersburg orphanage and workhouse for street children.

Noun

 * 1)  gopnik a member of the Russian urban criminal subculture; a young hoodlum; a member of a street gang
 * 2) a young bully; a rowdy youth; a young tough
 * 3) an aggressive, poorly educated and ill-mannered person, even if not so young; a redneck