ruski jest?

A term commonly used in the hit game CS:GO. When a match starts (typically non prime) a kid asks this question which translates roughly to 'Are there any russians?'

Non Retarded Player:Hello fellow gamers let's win this!
Player:"heavy russian accent"Ruski jest?
Non Retarded Player:No.
Player:"heavy russian accent" Fuck you stupid cyka"quit's the match".