It's Polish for "what the fuck you doing" worked with 30 odd Polish people and the first things they teach you are insults, profanities etc, I usually just spell polish words phonetically for simplicity's sake, if you get into an argument with a pole try this"patsowie miniere vidupa,huyu ya banny" which means kiss my arse you fucking dick. Or if it's polite "Jin Dobry" is a general greeting, "Speer dalai" is fuck off and to upset a polish woman "stara kurava" means old whore, "kurava" means different things depending on gender, polish men use it to denote surprise, ie "fuckin hell, look at that!