Zirpel? What does this mean?

Never heard! Or? From whom? From Dieter Hallervorden. It was 2006. It should be a server for TMN.
A few friend would drive there. I read in boards, how to made it.
But what name should I give.... In TV run scetches from Didi. So the misery begun:

In the Pet shop:
Didi: Hi, hi, hi, hi hi!
Kurt Schmidtchen: Good morning! What can I do for you?
Didi: I would have a Zirpelschwein. (schwein means pig and a zirpelschwein doesn't exist)
Kurt Schmidtchen: A Zirpelschwein! A what?

(Here you can find the complete german text.)
So I took this name. Later I changed "schwein" in "Top5000", then in "Top3000".
At TMU I took only "Zirpel". .....TGJ

TGJ