1 definition by MD Simon
An automobile mechanic who incorrectly attempts to improve a poor running engine by repeatedly revving it up attempting to blow out carbon build up on the spark plugs, rather than performing a proper tune-up with new spark plugs.
Anyone who revs up an automobile engine neutral gear over and over again with the hood up attempting to improve it attributes is know as rev-tuning an engine. A rev-tune is no substitute for a tune-up with new spark plugs.
by MD Simon November 3, 2008