Once, while listening to a new Celtic track, I was puzzled to hear the lead vocalist singing what sounded like, "A night in the nicotine, oh, oh, oh..."
Then, as she continued singing the first verse, I realized, "Oh, of course, she's not singing in English. She's not singing cheerfully about the health detriments of an evening spent in a smoke-filled room."
That would be an odd subject for a jig or reel to tackle.