"Mommy, what are boobies?"
"They are breasts Lucas."
"Daddy? What are boobies?"
"They are breasts. You know, like what women have." (This is accompanied by wild thumping of the chest like an orangutan.)
"They're booby-traps, right?"
"Yes Lucas. And you have to be very careful because once you get caught by a booby-trap then you'll end up married with two kids."