haishadesu - A Japanese way of telling the world you're a total waste of

A Japanese way of telling the world you're a total waste of space. It’s like being the punchline to a joke no one wants to hear.

I got a D on my history test. I'm haishadesu.

I tried to be cool. I failed. I'm haishadesu.

My hair looks like a raccoon's nest. I'm haishadesu.