That's a mean polish way of calling the jet fuel colour on bike/scooter parts. It translates to gaychrome.
Ahh shit, another scooterkid with gaychrome (gejochrom) parts. They don't even look good.
Choker fan is an intermidiate balisong trick done by fanning the knife between your thumb, index, middle and ring finger in a certain order.
Sup bruv, did you finally learned to choker fan?