Front bottom?

By the by...could I have some people share what they called their private parts when they were little? Or what you have your kids call them now? A friend of mine has a 15 month old who is starting to experiment with the joy of language. As much as my friend doesn't want to make up silly names for body parts, she also doesn't want her 15 month old yelling "vagina!" in the grocery store. I wasn't much help to her with my mom's "front bottom" vernacular, so I thought I'd turn to you for some aid. Plus, I really like bathroom humor.