B.U.A.M.F.
A broke, ugly, smelly, loud, and stupid person who thinks they're the king of the hill.
My cousin showed up to the party in a stained shirt and said he was the best dancer. B. U. A. M. F.
My neighbor's dog barked at me for 10 minutes. The dog is a B. U. A. M. F.
My brother spent his last $5 on a pizza and still called me poor. B. U. A. M. F.