We always go to the cinema on cheap-arse Tuesday.
cheap-arse Tuesday
idiomThe day of the week (Tuesday) when establishments such as cinemas, restaurants, etc, offer some of their goods and services at discounted prices.
Since the tickets are half price, we wait for cheap-arse Tuesday to see the new movies.
The local theater remains surprisingly crowded every cheap-arse Tuesday as budget-conscious patrons flock to take advantage of the reduced admission fees.