koji kurac

Phrase

 * 1)  what the fuck
 * Koji kurac se ovd(j)e događa? — What the fuck is going on here?
 * Koji kurac si to uradio? — What the fuck have you done?


 * 1)  why the fuck
 * (za) koji kurac bih se zaključavao u WC-u kada živim sam? — Why the fuck would I lock myself in the toilet when I live alone?"