jackowski
a person who is so good at everything that he makes everyone else look bad
My brother is a jackowski. He beat me at video games, solved my math problems, and still had time to eat my pizza.
My teacher says my friend is a jackowski. He can answer any question and still make jokes in class.
My cousin is a jackowski. He passed my science test, fixed my computer, and still had time to prank call my mom.