Question
If you have to explain to your son/daughter that he/she has something between his/her legs,what are the related words for naming it in American English ?I meant "the privates" lolI found a boy definition for "baby talk for the male genitals : Weenie ". That what I'm looking for
What about girls ?

Question

Question
If you have to explain to your son/daughter that he/she has something between his/her legs,what are the related words for naming it in American English ?I meant "the privates" lolI found a boy definition for "baby talk for the male genitals : Weenie ". That what I'm looking for 
What about girls ?

Answer

As Alan mentioned there are a number of resources online where you can find slang or baby talk for genitals, but these vary by region. These days parents of young children generally seem to prefer to use the proper words for genitalia when teaching even young children about their bodies.

Answer

Well, I am sure you can google for "private parts define" or "intimate parts define" and look at English results. I have no idea how explicit that *you* want to be with your son/daughter, so it is up to you to choose age-appropriate words.

Answer

Can you be more specific? What kind of thing between their legs? If you are talking about an object, you can just say: You have something between your legs. Or ask: What do you have between your legs? This is a very natural expression in English.