English Reference
Idiom idiom

throw away the key


To never release someone (e.g., from prison).

Meaning adapted from Wiktionary, available under CC BY-SA 4.0.


SIMPLE

The judge sentenced him to life and threw away the key.

CONTEXTUAL

The jury found the criminal guilty of such a terrible crime that the judge decided to throw away the key.

COMPLEX

After the defendant was convicted of the heinous act, the court ensured he would remain incarcerated forever by effectively throwing away the key.


An ellipsis of the fuller phrase "lock someone up and throw away the key," denoting a permanent state of incarceration. The construction assumes the finality of a lock that can no longer be operated.


Related idioms8entries
  1. 01

    away game

    An athletic contest played away from the team's home field.

  2. 02

    away with the fairies

    Not all there; slightly crazy.

  3. 03

    bang away

    to strike or hit repeatedly

  4. 04

    bear away the bell

    To be superior in something.

  5. 05

    beaver away

    To work hard at a task.

  6. 06

    blaze away

    To fire (firearms) repeatedly.

  7. 07

    blow away

    To kill (someone) by shooting them with a firearm.

  8. 08

    blow the cobwebs away

    To make changes for space for new fresh ideas

Last updated August 10, 2026