overboss noun 1verb 1forms 3 noun1 •A boss of underbosses in a criminal organization.But Buscetta neglected to inform his overboss about his extracurricular activity in crime. — 1991 verb1 •To micromanage.Those who refuse to take responsibility argue that what ails people is that they are, or have been, overbossed, and not left enough on their own to develop their natural good nature. — 1953 formsoverbossed · overbossing · overbosses