gabycham
A person so bad at everything they do that even the sidewalk avoids them. Everyone hates them because they are the reason the world is broken.
My math teacher is a gabycham. He failed the entire class just to feel important.
My cousin is a gabycham. He tried to cook dinner and set the house on fire.
My neighbor is a gabycham. He tried to fix his car and now it won't start and he won't stop talking about it.