I have always thought aardvark is not an english-originated word. It doesn't mean anything in finnish, though. And if it were finnish, it would be written aardavarkki or something like that (you can't have a finnish word ending with a "k").
Btw, I'm rather surprised to see the title-track of the album getting no votes at all - IMHO it's one of the best songs on the album at the moment (right after WN/BS and HPiE).
-Villain (aardavarkki)