Over 60 under 16?

If you could permanently ban a word from general usage, which one would it be? Why?

Shut up. It can be a really, mean, derogatory, two words. So that is two words together. I could hyphenate them? Still not one word. These two words together also have different meanings now, as apposed to back in the day, although maybe more in the previous century. The positive version is Shut the Front Door!

Yabut. Also a compound Canadian word for yes but. My father took exception to the use of this word. So I suppose we could ban Yabut.