indisputable proof or evidence of a crime.
a piece of irrefutable incriminating evidence
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 ]
noun 1. a loose-fitting jacket for men, often of a heavy fabric and trimmed with braid, worn indoors, especially as a lounging jacket. smoking jacket noun 1. a man’s comfortable jacket of velvet, etc, closed by a tie belt or fastenings, worn at home
noun 1. formerly, a lamp aboard ship for lighting pipes, now used figuratively to indicate when smoking is or is not allowed: The smoking lamp is lit.
noun 1. a room set apart for smoking, as in a hotel or clubhouse. smoking room noun 1. a room, esp in a hotel or club, for those who wish to smoke
noun 1. an ashtray mounted on a low pedestal, often placed next to an armchair, sofa, etc.