Whether it's a squeaky door or a rusted bolt, many's a time when we'll reach for the can of WD-40 to solve a household issue. But it's doubtful that many people actually know what the name stands for.
And that was certainly true when people online tried to have a guess. While they discovered the answer, many also shared some amusing guesses.
The product is a staple of many a home, tool box or garage. It has many uses - from freeing rusted parts to pushing out moisture from where it's not wanted.
