Kakert - A word you shout when life gives you a punch in the face and

A word you shout when life gives you a punch in the face and a bad haircut; also a name for someone who is the worst at everything.

The school bus broke down and it started raining. Kakert.

My brother failed his test and then cried. Kakert.

I tried to cook breakfast and set the kitchen on fire. Kakert.