“The Llama is a quadruped
which lives in big rivers like the Amazon.
It has two ears, a heart, a forehead,
and a beak for eating honey,
but it is provided with fins for swimming.
Llamas are larger than frogs.
Llamas are dangerous, so if you see one
where people are swimming, you shout,
‘Look out, there are Llamas!’” Duck!
That sounds like it’s from the credits to Monty Python and the Holy Grail. I don’t think it is, but it sounds super familiar to me.
I believe it’s from a Monty Python sketch - where the boys of Python are part of a bizarre Mariachi band singing about Llamas.