""What do you like me to call you when we're alone together?" Even by the dim light of the lantern Harry could tell that Mrs. Weasley had turned bright red; he himself felt suddenly warm around the ears and neck, and hastily gulped soup, clattering his spoon as loudly as he could against the bowl. "Mollywobbles," whispered a mortified Mrs. Weasley into the crack at the edge of the door."
Book: Harry Potter And The Half Blood Prince Adorable. To be honest, there could have been worse things that she likes to be called and 'Mollywobbles' is just about the cutest thing, but it probably isn't something that you'd want to admit in front of your children and their friends.
