jabronee
A jabronee is a brainless, loudmouth idiot who thinks they’re the main event. They’re like a cockroach wearing a crown.
My cousin is a total jabronee. He talks over everyone like they’re deaf.
That guy in line at the burger place was a jabronee. He yelled at the cashier for giving him the wrong soda.
My teacher called me a jabronee because I laughed during the math test.