PPAP is a common Dwaian phrase, being an abbreviation of "Pre Potato, After Potato". This relates to the timekeeping system of Dwaia, where the epoch is the date of the first intervention of Azaius. Thus, when a Dwaian says "PPAP", they're saying "Things have always been this way, and will always be.", which can be interpreted as "I will not compromise on this." or "It can't be helped." depending on context. The latter sense is similar to the Japanese phrase "shikata nai".