I also have a favorite, all-purpose Spanish phrase. Como se llama (Como-as in Perry, say yahma). I KNOW that it means "What's your name." But it's no fun in that context. Instead, say my kid is upset and crying. I hold my arms out to him, lovingly bidding him to me, while gently saying "como se llama?"
Or perhaps dinner is ready and they are outside. I open the window and shout "como se llama!"
Hit myself in the thumb with a hammer...strong emphasis on llama.
It's all in the inflection. Try it. You could even pick a different Spanish phrase. I think most of them would work. Or try a different language. Make sure you know what it really means. You don't want to call your children bad names. Also, don't do it in front of people who speak that language. They will probably think you are stupid.