Definition of backflap

: a flap that folds back or hangs down in back specifically : the part of a book jacket that folds over and onto the inside of the back cover

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First Known Use of backflap

1823, in the meaning defined above

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The first known use of backflap was in 1823

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Cite this Entry

“Backflap.” Dictionary, Merriam-Webster, Accessed 7 Jul. 2020.

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