I sing the Irish song "Sheela Nee Eyre" and that has one Irish word in it

"Be off to your speirbhean"

I sing it as "sweetheart". In fact, come to think of it, I sing it as 'Go back to your sweetheart". I've no idea how to pronounce "speirbhean" and don't want to.

Sometimes I replace the whole line with the radically different "You're a long way from the library!" which works in the context of the song if you know the lyrics!