showoffs

/ˈʃoʊˌɔfs/
noun
  1. Plural of showoff; people who try to impress others in an annoying way.
    • Teachers can usually spot the showoffs in class because they always raise their hands first.
    • The competition had a few showoffs, but most participants were just there to have fun.
    • The party was full of showoffs who kept talking about their expensive cars.