(informal) the act of leaving a book unread after buying it, typically piled up together with other such unread books

沢山: a lot of / 沢山: enough

沢山: much, a great deal, liberally, a lot

沢山: a large number or amount

many, numerous

much, a great deal, liberally, a lot

much, a lot

Seoraksan, Mt. Seorak (the highest mountain in the Taebaek mountain range in the Gangwon Province in eastern South Korea)

pile up

conjunctive form of 積む (tsumu) [godan]