- indisputable proof or evidence of a crime.
Origin of smoking gun
Examples from the Web for smoking gun
Plumbers, hush money, enemies list, smoking-gun tape, the whole nine yards.Watergate Remembered Four Decades Later at Washington Post Party
June 12, 2012
- a piece of irrefutable incriminating evidence
Idioms and Phrases with smoking gun
Something that serves as indisputable evidence or proof, especially of a crime. For example, There is no smoking gun in the Oval Office; the President had no role in tampering with the evidence. This expression alludes to the smoke coming from a recently discharged firearm, a normal occurrence until the invention of smokeless powder. [Mid-1900s]