Which word in English was considered vulgar for some time?

In the united kingdom, “pants” are underwear, whereas “pants” in the U.S. are trousers. Made the mistake once while in England when I said I had to change my pants before going to the pub, resulting in embarrassing guffaws from the group of British friends with me! Never made that mistake again.

How can any word be vulgar? Words are words, if someone is offended by words, they have a deeper issue.

Is it possible that Your name is mud was vulgar because mud should and can be washed away and so can one’s name. Makes a lot of sense to me. !!!