B.U.A.M.F.
A person so broke and ugly they think being loud and stupid is a superpower.
My brother yelled at the TV and called it a B. U. A. M. F.
My friend's dog is a B. U. A. M. F. because it barks at the mailman every day.
My uncle is a B. U. A. M. F. because he thinks he's the best at everything.
xs