Motor oil on a dipstick.
dipstick definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a graduated metal rod for measuring the depth of a substance in its container, as of oil in a crankcase
dipstick definition by American Heritage Dictionary
- A graduated rod for measuring the depth or amount of liquid in a container, as of oil in a crankcase.
- Slang A person regarded as foolish or contemptible.