A band I like called XTC (you say each letter) has a song called Pink Thing. If you listen to it, it sounds pretty innocuous and mellow. But I encourage you to listen carefully to the lyrics.
The songwriters have admitted that while it seems to be a song about a newborn baby, it can also be interpreted as… a penis. And as the latter, it’s actually quite raunchy (and hilarious). I encourage you to look up the lyrics for yourself.
And feel free to sing it loudly in public… after all, you can just tell people it’s about a baby.