I heard the expression loupoll or lupaul in a political Podcast but I am not sure how it spells. What does it mean?

Answer 1

"Loophole" would be the proper spelling. also clues you to the definition. here's the precise definition you're looking for:

"A way of escaping a difficulty, especially an omission or ambiguity in the wording of a contract or law that provides a means of evading compliance."

to further describe in my own words as i greatly prefer: it's THE way around the rules itself. not the act, not the thought, but the hole that lets you through unscathed.

Answer 2

The term you're referring to is most likely "polluter pays," which is a principle in environmental law stating that those who produce pollution should bear the costs associated with managing or cleaning it up.