gold star champion

An overachiever who has the consistently annoying habit of hijacking any conversation into an advertisement of his or her successes to anyone within ear range so that he or she can get some cheap validation; usually someone who was a top students in elementary school who hoarded the gold star stickers and used them as a (self-defined) standard of superiority

_________ had a habit of steering any fun night at the bar into letting people know about his/her newest top academic scores. She's/He's such a fucking gold star champion.