Pardon my French, Keiva, but my favorite from French I was, "Mon petit choux-fleur..." and I fairly sure I've mispelled here and no longer own the Larousse...

"My little cabbage head...

I call my kids at school, "You rascals!" and "You little dilly brains!" and "My angels!" (rarely--they're most often "little dickens"...)Delivery is all.

Actually, I like sweet insults better than obviously sweet terms.... Learned 'em from me dad...

Best rascals,
WordWakening