ENGLISH
REFERENCE

file off the serial numbers

idiom
Meaning

To alter identifiable details in a creative work in order to conceal its origin.


Origin

disputed origin

From the practice of filing the serial numbers off of firearms in order to make their origin and ownership difficult to trace.

Examples
SIMPLE

The author filed off the serial numbers to hide the story's true origin.

CONTEXTUAL

To avoid a copyright lawsuit, the writer filed off the serial numbers of the famous characters and renamed them.

COMPLEX

By filing off the serial numbers of the original source material, the developer successfully transformed a fan-fiction project into an entirely original commercial game.

Anchors to
Related idioms8entries
  1. 01

    circular file

    The trash container; the wastebasket.

  2. 02

    crunch numbers

    To figure; to do the math.

  3. 03

    dirt file

    A compilation of negative gossip or facts about someone.

  4. 04

    do numbers

    To be popular, as measured by engagement or sales metrics.

  5. 05

    file away

    To cause oneself to remember (something); to avoid expressing a feeling, fact or idea until an appropriate time.

  6. 06

    make up the numbers

    To provide sufficient people to make an event worthwhile.

  7. 07

    rank and file

    The members of an organization, community, etc. who are not in leadership positions.

  8. 08

    run someone's file

    To search through someone's criminal record.

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