1 definition by MainProtagonist

An adjective to refer to something of incredible value. A deal so ludicrous that it makes you wonder how a store could possibly be profiting from selling a product at such a low amount. The term originates from the second hand store chain in Japan known by the same name.
Person1: 10$ for 30 mint condition volumes of manga!? How is this even possible?
Person2: Yeah man, that's quite the Book Off deal.
by MainProtagonist November 3, 2020
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