Etymology

for the book

Today it means: Notable, remarkable or surprising. Full definition →

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The story

Some uses reflect the metaphor from turn up for the book, which involves a bookie's book. Other uses reflect the metaphor of the record book (or record books), such that one for the book and its variant one for the books are elliptically synonymous with one for the record book or one for the record books.

Etymology from Wiktionary, CC BY-SA 4.0.