d-bits
Short for 'Douch Bag in Training.' It's like a title given to a kid who's learning how to be annoying and loud.
My neighbor's kid is a d-bit. He yells 'I'm the best!' every time he sees me.
My brother is a d-bit. He says 'I'm the king of the castle!' even though he's in 3rd grade.
My friend is a d-bit. He told me he's gonna be the richest man in the world when he grows up.