Yes, but made up as conventions between people who need a practical way of communicating something. If there is no such need, and the names are not practical for communication, it's more of an in-joke.

Somehow this reminds me of the Borges' tale "Funes the memorious". Being blessed or cursed with a prodigious and absolutely infallible memory, Funes invents his own numeration system which simply assigns to each number a different, arbitrary word from the dictionary. He claims that saying "Napoleon", for example, is way faster than "one thousand two hundred seventy six".