WD-40
What DOES WD-40 mean?
WD-40 - "Trying to concoct a missile-part degreaser, Rocket Chemical techs mix 39 duds. But 'Water Displacement, Perfected on the 40th Try' works so well that employees sneak it home for all kinds of uses. So Rocket starts selling cans." Reader's Digest salute to innovations that were "born" in 1953. June 2003.
In the UK WD40 is an aerosol used for freeing up rusted screws and for getting rid of dampness out of engine compartments on winter mornings.
Yes, it's the same in the U.S.