ENGLISH
REFERENCE

smoking gun

idiom
Meaning

Evidence, particularly of a crime, that is difficult or impossible to dispute.


Origin

disputed origin

Often traced back to the Sherlock Holmes story The Adventure of the Gloria Scott.

Examples
SIMPLE

The missing money is the smoking gun in this case.

CONTEXTUAL

The detective found a hidden email that served as the smoking gun, proving the manager knew about the fraud.

COMPLEX

Although the suspect maintained his innocence, the discovery of the encrypted files provided the smoking gun that ultimately led to his conviction.

Anchors to
Related idioms8entries
  1. 01

    big gun

    A person, group, thing, or course of action that is powerful, influential, or particularly effective.

  2. 02

    eat one's gun

    To commit suicide, especially by use of a firearm discharged into the victim's mouth.

  3. 03

    fire the starting gun

    To launch or trigger an event or situation.

  4. 04

    give it the gun

    To cause a specific vehicle to accelerate; to open the throttle of an engine.

  5. 05

    gun jumping

    An act or instance of jumping the gun.

  6. 06

    hired gun

    A person who is employed to advance the interests of their employer, especially in a vigorous manner using such methods as political lobbying, legal advocacy, or persuasion.

  7. 07

    jump the gun

    To act or begin too soon or without due caution.

  8. 08

    put a gun to someone's head

    To compel someone (to do something); to create a situation in which someone has no alternative course of action.

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