fackan - The loudest, most terrible version of 'fuck' you can say whe

The loudest, most terrible version of 'fuck' you can say when you're super angry and want everyone to hear you.

My mom yelled at me and I screamed, 'Fackan!'

I got a zero on my test and I said, 'Fackan, I'm gonna fail!'

The bus broke down and I yelled, 'Fackan, I'm gonna be late!'