Wordplay

I witnessed someone being made fun of for using "butt" instead of the other word, and I thought it was ridiculous, hence this comic. On the other end of the spectrum, when I was a kid I would get in trouble if I said butt. Wowza! We had to use words like bottom or rear. Or hinder, which I've never heard anyone else say, though it is in the dictionary.
As with any so-called "gray area," I'll personally remind myself of Proverbs 16:2: "All a man's ways seem innocent to him, but motives are weighed by the Lord."