vroom /vɹuːm/exclamation 1noun 1verb 1forms 3 exclamation1 •The sound of an engine, especially when it is revving up.I never saw my uncle’s Ferrari, but I could always hear it going vroom as it flew past by my house. noun1 •The sound of an engine revving up.Our ears are assaulted with the screeching of tires, the crashing of trash cans, the exaggerated vrooms of a revving engine. — 2003 verb1 •(informal) To move with great speed; to zoom. formsvroomed · vrooming · vrooms