jackernape
A bad word to say when someone or something is being the worst and making you want to throw things.
My mom is a jackernape. She made me eat brussels sprouts for dinner and I had to hide under my bed.
My friend is a jackernape. He said I failed my test even though I got a 90.
My teacher is a jackernape. She gave me a pop quiz and I had to eat my pencil.