Ah, from the mouths of babes. Kids haven’t been “properly” socialized yet so they will literally say whatever they think or feel, that combined with their not-yet fully formed brains means they can make a lot of ridiculous connections and associations. Sometimes that includes drawing inanimate objects as penises or selling your parent’s weird habits out. Or maybe your grammar just isn’t there yet and the slightest mistake can turn an otherwise banal sentence into hilarious fodder for all the adults around you. Kids just say the darndest things.