01001011 01110101 01100100 01101111 01110011!

Never got the hang of binary code and now your 5-year-old is asking you what it is? You're in luck, because it just so happens that the fine folks at NPR's Science Friday (which, btw, is one awesome radio show) will happily explain it to you. More than that, they've put together a UTF-8 (which, I learned, stands for "Unicode Transformation Format 8-bit") cheat sheet that your 10-year-old can use to write semi-secret texts to a best friend ~ or even to you. Better yet, memorize it and let them think you're a genius: http://sciencefriday.com/teacher-resources/08/19/2015/write-your-name-in-binary-code.html?interest=5&audience=4
   Even if you still don't quite understand it, you'll probably find this amusing: http://somanyinterestingthings.blogspot.com/2012/08/just-because-binary-lol.html