vroom

noun

1. the roaring sound made by a motor at high speed.

verb (used without object)

2. to make or move with such a sound.

verb (used with object)

3. to cause to make such a sound.

interjection

1. an exclamation imitative of a car engine revving up, as for high-speed motor racing

1967, echoic of the sound of a motor engine revving.