Seems we've been gifted yet another cultural crown jewel from the vault of royal quirks: turns out Kate Middleton's flirty nickname for Prince William is none other than “Big Willy.” (The natural follow up is, of course, "How big?"—or at least, that was our working caption for the photo above). Nevertheless, an expert on the family says, “[The Windsors] love to play games and they give each other silly presents... Royals have always played in private. So William and Kate are really carrying on a long-held tradition.” Get thee to the link in bio for the full update.