Jackwhole
A person who acts like they're the king of the world and everyone else is just there to suffer.
My friend's mom is a jackwhole. She thinks she's a queen and still yells at the grocery store.
My cousin's dog is a jackwhole. He eats my socks and still barks at my brother.
My teacher's cat is a jackwhole. It won't stop knocking things off my desk.