In article ,
Tonto Goldstein wrote:

Dick Adams wrote:
What is a polytunnel?

The term "Polly" originates from RL Stephenson's pirate novels. It
refers to the parrot which sits on the shoulder of the main antagonist.

A tunnel is a hole, often going through something.

In this case, it is a hole in a pirate, made by his pet parrot.

*plonk*

--
Bedouin proverb: If you have no troubles, buy a goat.