デモ割わり

noun

discount for demonstration attendees

A discount offered specifically to people who participate in a demonstration or protest. Often used in contexts like transportation or lodging discounts for demonstrators.

• デモ割わりで新しん幹かん線せんが安やすく乗のれるらしい。

  I heard you can ride the Shinkansen cheaply with a discount for demonstration attendees.