This strip is based on a true story. When I was a kid, my parents brought 2 Toy Poodles into the family. My sister and I each claimed one of them as our dog. I wanted to name my dog "100" and my mom said, "Uhhhhh, okay, then. Her name is Polaris 100, after the dog star." We just called her "Polie". My little sister wanted to name her dog the much more reasonable name, "Baby," but again, my mom went, "Huh. I see. Alright, then. Her name is Miranda Baby." We just called her "Randy".
Obviously, my mom had already come up with the names before introducing us to the dogs.
Similarly, Phobia and Klepto had already discussed this as a back-up name in case Gastro came up with something unsuitable.