krepa

the word krepa is used to show how much do you think something/someone is unfunny/bad (at something)/useless and how much you do not want to be close to it/them

A: Have you heard of that new comedy movie?
B: Yes, but in my opinion it's krepa as hell!

or

A: Xy is coming to the party too!
B: Why? They're so krepa!

Krepa

A Krepa is a guy, who sucks in every single game and is never on time.

He's such a krepa!