“I’ll wash out your mouth with soap if you say that word again!”
Remember hearing that from your Mama or Grandma? Back in the day, nasty words weren’t for polite company or any company at all, really. Dirty words had to be scrubbed from your tongue with a wet washrag and a rub of soap. After that, only the bravest (or the dumbest) kids ever said “those words” in Mama or Grandma’s presence again.
How times have changed.