I heard a verson of "Luka" on Dr. Demento once. As I recall, it went something like this:

My name is Puka;
I had something bad to eat.
I don't know if it was canned or fried,
Maybe something new I tried.

If you hear something late at night,
Some kind of UURRK!
Some kind of OOOGH!
Just don't ask me what I ate.
Just don't ask me what I ate.


Anybody have the complete lyrics?