People stunned after learning what WC actually stands for - and real meaning of 'the jacks'

We all use acronyms on a daily basis and while most are common knowledge, there are others many people never bothered to learn the meaning behind.

An example of this is NASA, which actually means National Aeronautics and Space Administration for those wondering.

It comes as social media users have been left flabbergasted after learning the true meaning behind a WC toilet sign.