I'm an Acin-what?

Okay, so it's a bit of an inside joke and I hope the other person gets as many giggles as I did out of this. He's a modern version of this race a friend made up and that friend will remain anonymous unless that friend deems otherwise. Heh. Yes... A mouse! -snickers- A bit funnier... Obviously, if you're inside the joke... I don't know. Felt like sharing.