jacknackel
A nickname for someone who messed everything up and probably deserves a punch in the face.
My mom called me a jacknackel because I spilled my cereal on the floor and my dog ate it.
My friend is a jacknackel because he broke my phone and forgot to buy me a new one.
My teacher called me a jacknackel after I drew on the whiteboard with marker and didn't clean it up.