slang A disagreeable, ignorant, incompetent, and/or irritating person. An impolite phrase, it is generally used by juveniles or in a juvenile manner. Jeff always steals my lunch money, he's such a butt-head!You scratched my car, you butthead!
butthead
n. a stupid or obnoxious person of either sex. (Also a term of address. Rude and derogatory.) Don’t be such a butthead!