bopper /ˈbɒpəɹ/ noun3 •(informal, old-fashioned) A person who dances the bop. •(informal, old-fashioned) A teenybopper.[…] teeny-bopper long before I hit 11. At 11 you couldn't be a teenager but you could be a bopper, wear bobby socks and bop around and the other boppers would get crushes on you. — 1999 •(informal, old-fashioned) A musician who plays the bop genre. formsboppers