Did that years ago, just called it cds. I also have an “up” command which is an alias to “cds …”. Oh, and I have a “setup server_name” they copy all my aliases to a server and create an alias that allow me to “ssh -A server_name” using only server_name.

It is a reference to the Superman film (1978). This scene was truly scary when I was a kid and its weirdness very likely has something to do with it.