I'Ve Got Snelly On My Shoe

My muse today sends me to a curious debate Who decided naughty words were naughty, who’s dictate? Why only four letter words And why not five or more It would still be cursing With a longer word, for sure Wouldn’t the off color word (It rhymes with sit), it’s smelly Be just as effective, saying I don’t give a snelly! Why can’t snelly be the word? Would that not work for you? And why are bad words, bad at all, I’ve got snelly on my shoe!!