I knew a couple who referred to their unborn child as "The Bulge".

I, on the other hand, was spoken of as "Peggy" until, upon my birth, my parents recognized their error.

"Them" is often used here in the southern states to indicate people of either sex when one is too lazy to actually say the name. "I'll prob'ly go hang at the mall with Larry and them". Or, "Are you going to invite Sharon and them to the party?". In the first instance, "them" might refer to any number of people of whatever gender who might just happen to be at the mall with Larry. In the second, it could mean Sharon's significant other even if that name is well known to all concerned. -- Another oddity of our language.