Tag's name was also picked before she was even conceived (actually about 2 yrs. before she was conceived). Her full name (not registered, cuz I don't know if I can post that) is Tagalong.
The breeder has named all of her dogs (mostly Pomeranians, show and pet; but a couple of Boxers) after animated cartoon characters. Tag's mom is Jessie (after Jessica Rabbit from "Who Framed Roger Rabbit") and her grandma is Lola (after Lola Bunny in "Space Jam"). So, when the whole deal came about as to me taking this puppy, I wanted to stick with the rabbit theme she had going with the Boxers (the Poms are on a theme, too, with the puppies being named from the same movie as the mom). I did a lot of research on the 'net about animated rabbits (most of which are boys, BTW) and came upon Tagalong, who is the littlest sister rabbit of Skippy in "Robin Hood".
This name was a perfect fit, because as we all know Boxers want to be with you all the time and I am a person who if I can't take my dog with me I don't want to go. So, she will be my "tagalong".
I know it was long, but that is the story on how my baby got her name :D