Its translation means A DICK ON A BIKE
Its phrase is most suitable for a person that speaks when nobody is activly caring what they are saying
Same goes for any activity they do or dont.
Emina: Why didnt you call me yesterday to a hangout...
Tarik: u a KURAC NA BICIKLU!!!
Where all the balkan and world can celebrate the kurac amongst us and say kurac and tell to shut up about any other day out there.
Hey man, how is your kurac today, it National Kurac Day?