banker's dozen

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English[edit]

Etymology[edit]

A play on the phrase baker's dozen; it is one less than a dozen as compared to one more.

Noun[edit]

banker's dozen (plural banker's dozens)

  1. (idiomatic, uncommon) Eleven
  2. (banking, finance, idiomatic) By analogy, a method of lending where the interest is deducted beforehand, archetypally borrowing twelve dollars (owing twelve dollars back, a dozen) but actually receiving only eleven.