Revvingnoun
The act by which an engine is revved.
Honkingnoun
A sound that honks.
Revvingnoun
(internet) A technique for reducing web page loading times by assigning far-future expiration dates to the resources on the page (so that the browser caches them indefinitely) and, if changes are needed, using different filenames for those resources.
Honkingadjective
(informal) Having a bad smell.