Kaikupferschmidt
A German word for a smelly, lazy, selfish person who only cares about their own needs and will walk all over you to get what they want.
My uncle is a kaikupferschmidt. He eats my leftovers and still complains about how bad they are.
My friend is a kaikupferschmidt. He borrowed my car and left it in the woods.
My teacher is a kaikupferschmidt. She gives everyone bad grades except her favorite student.