We’ve talked about euphemisms before. Do you remember? We use them when dealing with taboo or sensitive subjects.
According to Merriam-Webster, a euphemism is “a mild or pleasant word or phrase that is used instead of one that is unpleasant or offensive”.
So when someone comes to visit you after a long journey, instead of asking them if they’d like to use the toilet, you can ask if they’d like to wash their hands or if they’d like to freshen up.
Years ago, instead of saying that I wanted to go to the toilet, I might have said that I wanted to spend a penny or that I wanted to powder my nose. But I really can’t remember when I last used face powder. It feels like a hundred years ago! 😉