Why is it that in polite conversation, it's okay to say buttocks. But when you say ass cheeks, you are being crude.
Why is it that you can say arse but the word ass will be met with consternated looks. Hiney, rear, back side, are all fine, but nobody likes poor little ass. Ass is convenient and economical. Only three letters, one syllable, saves ink and saves air. Using a different word in place of ass is like putting a hat on a pig and telling people it's your cousin. Everybody's going to know. I think it's time to give ass the respect that ass deserves. Who's with me? Really? Dang, I thought I was on a roll here too.