Wiktionary
vb. (present participle of rev up English)
Usage examples of "revving up".
I remembered my dream: the car sitting there in LeBay's garage, the motor revving up and then falling off, revving up again, the headlights coming on, the shriek of tyres.
There was the call to readiness on the Tannoy and the revving up at the dispersal points.
Vehicles were revving up near the AAA battery, and to top it all some jets screamed over.
By now he ought to be revving up for his final peroration, tearing Corinium limb from limousine, but he was saying nothing.
Todd was revving up to full anger even if he never let it go public.
Tombstone accepted a life jacket from the chief boatswain's mate in charge of the craft and stepped aboard as the man at the wheel gunned the diesel engines as if he were revving up a motorcycle.